{
    "ts": 1729074248619,
    "data": [
        {
            "id": 646,
            "course_id": 20,
            "content": "1.16.一个动作：发展（3）",
            "category": "text",
            "attachment_id": "",
            "order": 1,
            "duration": 1000000000,
            "created_at": "2023-11-14T18:03:32.397Z",
            "updated_at": "2023-11-14T18:03:32.397Z",
            "attachment": null
        },
        {
            "id": 647,
            "course_id": 20,
            "content": "阅读阅历阅人",
            "category": "text",
            "attachment_id": "",
            "order": 2,
            "duration": 1000000000,
            "created_at": "2023-11-14T18:03:32.397Z",
            "updated_at": "2023-11-14T18:03:32.397Z",
            "attachment": null
        },
        {
            "id": 648,
            "course_id": 20,
            "content": "4c1939e3-2809-447c-b614-cb1499c279ce.mp3",
            "category": "audio",
            "attachment_id": "4c1939e3-2809-447c-b614-cb1499c279ce",
            "order": 3,
            "duration": 40420,
            "created_at": "2023-11-14T18:03:32.397Z",
            "updated_at": "2023-11-14T18:03:32.634Z",
            "attachment": {
                "id": 11828,
                "attachment_id": "4c1939e3-2809-447c-b614-cb1499c279ce",
                "name": "4c1939e3-2809-447c-b614-cb1499c279ce.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/4c1939e3-2809-447c-b614-cb1499c279ce.mp3",
                "size": 323373,
                "duration": 40420,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:03:32.367Z",
                "updated_at": "2023-11-14T18:03:32.627Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/4c1939e3-2809-447c-b614-cb1499c279ce.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/4c1939e3-2809-447c-b614-cb1499c279ce.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/4c1939e3-2809-447c-b614-cb1499c279ce.mp3"
            }
        },
        {
            "id": 649,
            "course_id": 20,
            "content": "2fe96b61-a596-4723-90f2-5833bff1d9da.mp3",
            "category": "audio",
            "attachment_id": "2fe96b61-a596-4723-90f2-5833bff1d9da",
            "order": 4,
            "duration": 20690,
            "created_at": "2023-11-14T18:03:32.397Z",
            "updated_at": "2023-11-14T18:03:32.834Z",
            "attachment": {
                "id": 11829,
                "attachment_id": "2fe96b61-a596-4723-90f2-5833bff1d9da",
                "name": "2fe96b61-a596-4723-90f2-5833bff1d9da.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/2fe96b61-a596-4723-90f2-5833bff1d9da.mp3",
                "size": 165549,
                "duration": 20690,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:03:32.368Z",
                "updated_at": "2023-11-14T18:03:32.829Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/2fe96b61-a596-4723-90f2-5833bff1d9da.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/2fe96b61-a596-4723-90f2-5833bff1d9da.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/2fe96b61-a596-4723-90f2-5833bff1d9da.mp3"
            }
        },
        {
            "id": 650,
            "course_id": 20,
            "content": "3fe94bc2-0187-4ffe-b3dc-b6edfe9f1c08.mp3",
            "category": "audio",
            "attachment_id": "3fe94bc2-0187-4ffe-b3dc-b6edfe9f1c08",
            "order": 5,
            "duration": 36980,
            "created_at": "2023-11-14T18:03:32.397Z",
            "updated_at": "2023-11-14T18:03:33.06Z",
            "attachment": {
                "id": 11830,
                "attachment_id": "3fe94bc2-0187-4ffe-b3dc-b6edfe9f1c08",
                "name": "3fe94bc2-0187-4ffe-b3dc-b6edfe9f1c08.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/3fe94bc2-0187-4ffe-b3dc-b6edfe9f1c08.mp3",
                "size": 295917,
                "duration": 36980,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:03:32.368Z",
                "updated_at": "2023-11-14T18:03:33.05Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/3fe94bc2-0187-4ffe-b3dc-b6edfe9f1c08.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/3fe94bc2-0187-4ffe-b3dc-b6edfe9f1c08.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/3fe94bc2-0187-4ffe-b3dc-b6edfe9f1c08.mp3"
            }
        },
        {
            "id": 651,
            "course_id": 20,
            "content": "fc5072d0-ce38-4b7e-9a70-f14a82ee0825.mp3",
            "category": "audio",
            "attachment_id": "fc5072d0-ce38-4b7e-9a70-f14a82ee0825",
            "order": 6,
            "duration": 34220,
            "created_at": "2023-11-14T18:03:32.397Z",
            "updated_at": "2023-11-14T18:03:33.284Z",
            "attachment": {
                "id": 11831,
                "attachment_id": "fc5072d0-ce38-4b7e-9a70-f14a82ee0825",
                "name": "fc5072d0-ce38-4b7e-9a70-f14a82ee0825.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/fc5072d0-ce38-4b7e-9a70-f14a82ee0825.mp3",
                "size": 273837,
                "duration": 34220,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:03:32.369Z",
                "updated_at": "2023-11-14T18:03:33.275Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/fc5072d0-ce38-4b7e-9a70-f14a82ee0825.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/fc5072d0-ce38-4b7e-9a70-f14a82ee0825.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/fc5072d0-ce38-4b7e-9a70-f14a82ee0825.mp3"
            }
        },
        {
            "id": 652,
            "course_id": 20,
            "content": "6c798e97-dfda-4ed1-b05b-9031624acada.png",
            "category": "image",
            "attachment_id": "6c798e97-dfda-4ed1-b05b-9031624acada",
            "order": 7,
            "duration": 1000000000,
            "created_at": "2023-11-14T18:03:32.397Z",
            "updated_at": "2023-11-14T18:03:32.397Z",
            "attachment": {
                "id": 11832,
                "attachment_id": "6c798e97-dfda-4ed1-b05b-9031624acada",
                "name": "6c798e97-dfda-4ed1-b05b-9031624acada.png",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/6c798e97-dfda-4ed1-b05b-9031624acada.png",
                "size": 11927,
                "duration": 0,
                "mime_type": "image/png",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:03:32.369Z",
                "updated_at": "2023-11-14T18:03:32.369Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/6c798e97-dfda-4ed1-b05b-9031624acada.png",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/6c798e97-dfda-4ed1-b05b-9031624acada.png",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/6c798e97-dfda-4ed1-b05b-9031624acada.png"
            }
        },
        {
            "id": 653,
            "course_id": 20,
            "content": "a3aa9cba-7c24-43cf-b484-edd5e68da005.mp3",
            "category": "audio",
            "attachment_id": "a3aa9cba-7c24-43cf-b484-edd5e68da005",
            "order": 8,
            "duration": 44470,
            "created_at": "2023-11-14T18:03:32.397Z",
            "updated_at": "2023-11-14T18:03:33.543Z",
            "attachment": {
                "id": 11833,
                "attachment_id": "a3aa9cba-7c24-43cf-b484-edd5e68da005",
                "name": "a3aa9cba-7c24-43cf-b484-edd5e68da005.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/a3aa9cba-7c24-43cf-b484-edd5e68da005.mp3",
                "size": 355821,
                "duration": 44470,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:03:32.37Z",
                "updated_at": "2023-11-14T18:03:33.522Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/a3aa9cba-7c24-43cf-b484-edd5e68da005.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/a3aa9cba-7c24-43cf-b484-edd5e68da005.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/a3aa9cba-7c24-43cf-b484-edd5e68da005.mp3"
            }
        },
        {
            "id": 654,
            "course_id": 20,
            "content": "17c76293-27d0-4954-bf21-f6b97b53e03c.mp3",
            "category": "audio",
            "attachment_id": "17c76293-27d0-4954-bf21-f6b97b53e03c",
            "order": 9,
            "duration": 60050,
            "created_at": "2023-11-14T18:03:32.397Z",
            "updated_at": "2023-11-14T18:03:33.78Z",
            "attachment": {
                "id": 11834,
                "attachment_id": "17c76293-27d0-4954-bf21-f6b97b53e03c",
                "name": "17c76293-27d0-4954-bf21-f6b97b53e03c.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/17c76293-27d0-4954-bf21-f6b97b53e03c.mp3",
                "size": 480429,
                "duration": 60050,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:03:32.371Z",
                "updated_at": "2023-11-14T18:03:33.769Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/17c76293-27d0-4954-bf21-f6b97b53e03c.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/17c76293-27d0-4954-bf21-f6b97b53e03c.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/17c76293-27d0-4954-bf21-f6b97b53e03c.mp3"
            }
        },
        {
            "id": 655,
            "course_id": 20,
            "content": "7c1ce8f9-5577-47dc-9af9-09a7809aebb8.mp3",
            "category": "audio",
            "attachment_id": "7c1ce8f9-5577-47dc-9af9-09a7809aebb8",
            "order": 10,
            "duration": 57820,
            "created_at": "2023-11-14T18:03:32.397Z",
            "updated_at": "2023-11-14T18:03:34.017Z",
            "attachment": {
                "id": 11835,
                "attachment_id": "7c1ce8f9-5577-47dc-9af9-09a7809aebb8",
                "name": "7c1ce8f9-5577-47dc-9af9-09a7809aebb8.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/7c1ce8f9-5577-47dc-9af9-09a7809aebb8.mp3",
                "size": 462573,
                "duration": 57820,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:03:32.372Z",
                "updated_at": "2023-11-14T18:03:34.007Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/7c1ce8f9-5577-47dc-9af9-09a7809aebb8.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/7c1ce8f9-5577-47dc-9af9-09a7809aebb8.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/7c1ce8f9-5577-47dc-9af9-09a7809aebb8.mp3"
            }
        },
        {
            "id": 656,
            "course_id": 20,
            "content": "If you think education is expensive, try ignorance. -- Derek Bok",
            "category": "text",
            "attachment_id": "",
            "order": 11,
            "duration": 1000000000,
            "created_at": "2023-11-14T18:03:32.397Z",
            "updated_at": "2023-11-14T18:03:32.397Z",
            "attachment": null
        },
        {
            "id": 657,
            "course_id": 20,
            "content": "a45e3908-f513-440e-9912-6297cb6d98b4.mp3",
            "category": "audio",
            "attachment_id": "a45e3908-f513-440e-9912-6297cb6d98b4",
            "order": 12,
            "duration": 60050,
            "created_at": "2023-11-14T18:03:32.397Z",
            "updated_at": "2023-11-14T18:03:34.275Z",
            "attachment": {
                "id": 11836,
                "attachment_id": "a45e3908-f513-440e-9912-6297cb6d98b4",
                "name": "a45e3908-f513-440e-9912-6297cb6d98b4.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/a45e3908-f513-440e-9912-6297cb6d98b4.mp3",
                "size": 480429,
                "duration": 60050,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:03:32.372Z",
                "updated_at": "2023-11-14T18:03:34.261Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/a45e3908-f513-440e-9912-6297cb6d98b4.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/a45e3908-f513-440e-9912-6297cb6d98b4.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/a45e3908-f513-440e-9912-6297cb6d98b4.mp3"
            }
        },
        {
            "id": 658,
            "course_id": 20,
            "content": "6d919ce5-641a-4918-9bc8-b802dc5761d3.mp3",
            "category": "audio",
            "attachment_id": "6d919ce5-641a-4918-9bc8-b802dc5761d3",
            "order": 13,
            "duration": 38900,
            "created_at": "2023-11-14T18:03:32.397Z",
            "updated_at": "2023-11-14T18:03:34.52Z",
            "attachment": {
                "id": 11837,
                "attachment_id": "6d919ce5-641a-4918-9bc8-b802dc5761d3",
                "name": "6d919ce5-641a-4918-9bc8-b802dc5761d3.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/6d919ce5-641a-4918-9bc8-b802dc5761d3.mp3",
                "size": 311277,
                "duration": 38900,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:03:32.373Z",
                "updated_at": "2023-11-14T18:03:34.506Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/6d919ce5-641a-4918-9bc8-b802dc5761d3.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/6d919ce5-641a-4918-9bc8-b802dc5761d3.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/6d919ce5-641a-4918-9bc8-b802dc5761d3.mp3"
            }
        },
        {
            "id": 659,
            "course_id": 20,
            "content": "163940b4-9105-4394-bbd9-27fabe4f78c4.mp3",
            "category": "audio",
            "attachment_id": "163940b4-9105-4394-bbd9-27fabe4f78c4",
            "order": 14,
            "duration": 60050,
            "created_at": "2023-11-14T18:03:32.397Z",
            "updated_at": "2023-11-14T18:03:34.751Z",
            "attachment": {
                "id": 11838,
                "attachment_id": "163940b4-9105-4394-bbd9-27fabe4f78c4",
                "name": "163940b4-9105-4394-bbd9-27fabe4f78c4.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/163940b4-9105-4394-bbd9-27fabe4f78c4.mp3",
                "size": 480429,
                "duration": 60050,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:03:32.374Z",
                "updated_at": "2023-11-14T18:03:34.739Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/163940b4-9105-4394-bbd9-27fabe4f78c4.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/163940b4-9105-4394-bbd9-27fabe4f78c4.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/163940b4-9105-4394-bbd9-27fabe4f78c4.mp3"
            }
        },
        {
            "id": 660,
            "course_id": 20,
            "content": "bf706d6b-c582-4580-8960-ef19d8690ad9.mp3",
            "category": "audio",
            "attachment_id": "bf706d6b-c582-4580-8960-ef19d8690ad9",
            "order": 15,
            "duration": 17590,
            "created_at": "2023-11-14T18:03:32.397Z",
            "updated_at": "2023-11-14T18:03:35.017Z",
            "attachment": {
                "id": 11839,
                "attachment_id": "bf706d6b-c582-4580-8960-ef19d8690ad9",
                "name": "bf706d6b-c582-4580-8960-ef19d8690ad9.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/bf706d6b-c582-4580-8960-ef19d8690ad9.mp3",
                "size": 140781,
                "duration": 17590,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:03:32.374Z",
                "updated_at": "2023-11-14T18:03:35.002Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/bf706d6b-c582-4580-8960-ef19d8690ad9.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/bf706d6b-c582-4580-8960-ef19d8690ad9.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/bf706d6b-c582-4580-8960-ef19d8690ad9.mp3"
            }
        },
        {
            "id": 661,
            "course_id": 20,
            "content": "5aaa19b0-0c71-4937-a18c-0b9b0f92179b.png",
            "category": "image",
            "attachment_id": "5aaa19b0-0c71-4937-a18c-0b9b0f92179b",
            "order": 16,
            "duration": 1000000000,
            "created_at": "2023-11-14T18:03:32.397Z",
            "updated_at": "2023-11-14T18:03:32.397Z",
            "attachment": {
                "id": 11840,
                "attachment_id": "5aaa19b0-0c71-4937-a18c-0b9b0f92179b",
                "name": "5aaa19b0-0c71-4937-a18c-0b9b0f92179b.png",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/5aaa19b0-0c71-4937-a18c-0b9b0f92179b.png",
                "size": 23313,
                "duration": 0,
                "mime_type": "image/png",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:03:32.375Z",
                "updated_at": "2023-11-14T18:03:32.375Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/5aaa19b0-0c71-4937-a18c-0b9b0f92179b.png",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/5aaa19b0-0c71-4937-a18c-0b9b0f92179b.png",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/5aaa19b0-0c71-4937-a18c-0b9b0f92179b.png"
            }
        },
        {
            "id": 662,
            "course_id": 20,
            "content": "9bdfce36-8c5c-42f6-9407-6dc9e18fdc89.mp3",
            "category": "audio",
            "attachment_id": "9bdfce36-8c5c-42f6-9407-6dc9e18fdc89",
            "order": 17,
            "duration": 41450,
            "created_at": "2023-11-14T18:03:32.397Z",
            "updated_at": "2023-11-14T18:03:35.259Z",
            "attachment": {
                "id": 11841,
                "attachment_id": "9bdfce36-8c5c-42f6-9407-6dc9e18fdc89",
                "name": "9bdfce36-8c5c-42f6-9407-6dc9e18fdc89.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/9bdfce36-8c5c-42f6-9407-6dc9e18fdc89.mp3",
                "size": 331629,
                "duration": 41450,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:03:32.375Z",
                "updated_at": "2023-11-14T18:03:35.249Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/9bdfce36-8c5c-42f6-9407-6dc9e18fdc89.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/9bdfce36-8c5c-42f6-9407-6dc9e18fdc89.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/9bdfce36-8c5c-42f6-9407-6dc9e18fdc89.mp3"
            }
        },
        {
            "id": 663,
            "course_id": 20,
            "content": "bb437150-4637-4ca9-b5b2-68e5d6bf856b.mp3",
            "category": "audio",
            "attachment_id": "bb437150-4637-4ca9-b5b2-68e5d6bf856b",
            "order": 18,
            "duration": 28730,
            "created_at": "2023-11-14T18:03:32.397Z",
            "updated_at": "2023-11-14T18:03:35.536Z",
            "attachment": {
                "id": 11842,
                "attachment_id": "bb437150-4637-4ca9-b5b2-68e5d6bf856b",
                "name": "bb437150-4637-4ca9-b5b2-68e5d6bf856b.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/bb437150-4637-4ca9-b5b2-68e5d6bf856b.mp3",
                "size": 229869,
                "duration": 28730,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:03:32.376Z",
                "updated_at": "2023-11-14T18:03:35.531Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/bb437150-4637-4ca9-b5b2-68e5d6bf856b.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/bb437150-4637-4ca9-b5b2-68e5d6bf856b.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/bb437150-4637-4ca9-b5b2-68e5d6bf856b.mp3"
            }
        },
        {
            "id": 664,
            "course_id": 20,
            "content": "以研究为导向的阅读习惯",
            "category": "text",
            "attachment_id": "",
            "order": 19,
            "duration": 1000000000,
            "created_at": "2023-11-14T18:03:32.397Z",
            "updated_at": "2023-11-14T18:03:32.397Z",
            "attachment": null
        },
        {
            "id": 665,
            "course_id": 20,
            "content": "8f984345-ba89-4407-9aa0-9cc1b726cdd8.mp3",
            "category": "audio",
            "attachment_id": "8f984345-ba89-4407-9aa0-9cc1b726cdd8",
            "order": 20,
            "duration": 34130,
            "created_at": "2023-11-14T18:03:32.397Z",
            "updated_at": "2023-11-14T18:03:35.766Z",
            "attachment": {
                "id": 11843,
                "attachment_id": "8f984345-ba89-4407-9aa0-9cc1b726cdd8",
                "name": "8f984345-ba89-4407-9aa0-9cc1b726cdd8.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/8f984345-ba89-4407-9aa0-9cc1b726cdd8.mp3",
                "size": 273069,
                "duration": 34130,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:03:32.377Z",
                "updated_at": "2023-11-14T18:03:35.76Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/8f984345-ba89-4407-9aa0-9cc1b726cdd8.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/8f984345-ba89-4407-9aa0-9cc1b726cdd8.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/8f984345-ba89-4407-9aa0-9cc1b726cdd8.mp3"
            }
        },
        {
            "id": 666,
            "course_id": 20,
            "content": "8297b713-a287-4e5a-ba63-d81b9b4812ea.mp3",
            "category": "audio",
            "attachment_id": "8297b713-a287-4e5a-ba63-d81b9b4812ea",
            "order": 21,
            "duration": 47160,
            "created_at": "2023-11-14T18:03:32.397Z",
            "updated_at": "2023-11-14T18:03:35.972Z",
            "attachment": {
                "id": 11844,
                "attachment_id": "8297b713-a287-4e5a-ba63-d81b9b4812ea",
                "name": "8297b713-a287-4e5a-ba63-d81b9b4812ea.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/8297b713-a287-4e5a-ba63-d81b9b4812ea.mp3",
                "size": 377325,
                "duration": 47160,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:03:32.377Z",
                "updated_at": "2023-11-14T18:03:35.968Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/8297b713-a287-4e5a-ba63-d81b9b4812ea.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/8297b713-a287-4e5a-ba63-d81b9b4812ea.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/8297b713-a287-4e5a-ba63-d81b9b4812ea.mp3"
            }
        },
        {
            "id": 667,
            "course_id": 20,
            "content": "136448f9-0982-463c-8552-848a3f8c0bd0.mp3",
            "category": "audio",
            "attachment_id": "136448f9-0982-463c-8552-848a3f8c0bd0",
            "order": 22,
            "duration": 14180,
            "created_at": "2023-11-14T18:03:32.397Z",
            "updated_at": "2023-11-14T18:03:36.245Z",
            "attachment": {
                "id": 11845,
                "attachment_id": "136448f9-0982-463c-8552-848a3f8c0bd0",
                "name": "136448f9-0982-463c-8552-848a3f8c0bd0.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/136448f9-0982-463c-8552-848a3f8c0bd0.mp3",
                "size": 113517,
                "duration": 14180,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:03:32.378Z",
                "updated_at": "2023-11-14T18:03:36.238Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/136448f9-0982-463c-8552-848a3f8c0bd0.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/136448f9-0982-463c-8552-848a3f8c0bd0.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/136448f9-0982-463c-8552-848a3f8c0bd0.mp3"
            }
        },
        {
            "id": 668,
            "course_id": 20,
            "content": "df087e92-87e5-4dba-993b-69c6a3db4cb3.png",
            "category": "image",
            "attachment_id": "df087e92-87e5-4dba-993b-69c6a3db4cb3",
            "order": 23,
            "duration": 1000000000,
            "created_at": "2023-11-14T18:03:32.397Z",
            "updated_at": "2023-11-14T18:03:32.397Z",
            "attachment": {
                "id": 11846,
                "attachment_id": "df087e92-87e5-4dba-993b-69c6a3db4cb3",
                "name": "df087e92-87e5-4dba-993b-69c6a3db4cb3.png",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/df087e92-87e5-4dba-993b-69c6a3db4cb3.png",
                "size": 54880,
                "duration": 0,
                "mime_type": "image/png",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:03:32.379Z",
                "updated_at": "2023-11-14T18:03:32.379Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/df087e92-87e5-4dba-993b-69c6a3db4cb3.png",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/df087e92-87e5-4dba-993b-69c6a3db4cb3.png",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/df087e92-87e5-4dba-993b-69c6a3db4cb3.png"
            }
        },
        {
            "id": 669,
            "course_id": 20,
            "content": "d272646f-f942-4c81-995e-52c4fb062aac.mp3",
            "category": "audio",
            "attachment_id": "d272646f-f942-4c81-995e-52c4fb062aac",
            "order": 24,
            "duration": 53210,
            "created_at": "2023-11-14T18:03:32.397Z",
            "updated_at": "2023-11-14T18:03:36.469Z",
            "attachment": {
                "id": 11847,
                "attachment_id": "d272646f-f942-4c81-995e-52c4fb062aac",
                "name": "d272646f-f942-4c81-995e-52c4fb062aac.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/d272646f-f942-4c81-995e-52c4fb062aac.mp3",
                "size": 425709,
                "duration": 53210,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:03:32.379Z",
                "updated_at": "2023-11-14T18:03:36.464Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/d272646f-f942-4c81-995e-52c4fb062aac.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/d272646f-f942-4c81-995e-52c4fb062aac.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/d272646f-f942-4c81-995e-52c4fb062aac.mp3"
            }
        },
        {
            "id": 670,
            "course_id": 20,
            "content": "c3baa6e1-1b36-4bfc-b88e-bb0308821130.mp3",
            "category": "audio",
            "attachment_id": "c3baa6e1-1b36-4bfc-b88e-bb0308821130",
            "order": 25,
            "duration": 32500,
            "created_at": "2023-11-14T18:03:32.397Z",
            "updated_at": "2023-11-14T18:03:36.679Z",
            "attachment": {
                "id": 11848,
                "attachment_id": "c3baa6e1-1b36-4bfc-b88e-bb0308821130",
                "name": "c3baa6e1-1b36-4bfc-b88e-bb0308821130.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/c3baa6e1-1b36-4bfc-b88e-bb0308821130.mp3",
                "size": 260013,
                "duration": 32500,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:03:32.381Z",
                "updated_at": "2023-11-14T18:03:36.672Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/c3baa6e1-1b36-4bfc-b88e-bb0308821130.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/c3baa6e1-1b36-4bfc-b88e-bb0308821130.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/c3baa6e1-1b36-4bfc-b88e-bb0308821130.mp3"
            }
        },
        {
            "id": 671,
            "course_id": 20,
            "content": "4162d8e2-ce15-4c1a-a2c3-e88b276b93cb.mp3",
            "category": "audio",
            "attachment_id": "4162d8e2-ce15-4c1a-a2c3-e88b276b93cb",
            "order": 26,
            "duration": 27220,
            "created_at": "2023-11-14T18:03:32.397Z",
            "updated_at": "2023-11-14T18:03:36.9Z",
            "attachment": {
                "id": 11849,
                "attachment_id": "4162d8e2-ce15-4c1a-a2c3-e88b276b93cb",
                "name": "4162d8e2-ce15-4c1a-a2c3-e88b276b93cb.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/4162d8e2-ce15-4c1a-a2c3-e88b276b93cb.mp3",
                "size": 217773,
                "duration": 27220,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:03:32.382Z",
                "updated_at": "2023-11-14T18:03:36.891Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/4162d8e2-ce15-4c1a-a2c3-e88b276b93cb.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/4162d8e2-ce15-4c1a-a2c3-e88b276b93cb.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/4162d8e2-ce15-4c1a-a2c3-e88b276b93cb.mp3"
            }
        },
        {
            "id": 672,
            "course_id": 20,
            "content": "74264ac7-ce82-41e3-a4c2-1d4763cf468d.mp3",
            "category": "audio",
            "attachment_id": "74264ac7-ce82-41e3-a4c2-1d4763cf468d",
            "order": 27,
            "duration": 56380,
            "created_at": "2023-11-14T18:03:32.397Z",
            "updated_at": "2023-11-14T18:03:37.117Z",
            "attachment": {
                "id": 11850,
                "attachment_id": "74264ac7-ce82-41e3-a4c2-1d4763cf468d",
                "name": "74264ac7-ce82-41e3-a4c2-1d4763cf468d.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/74264ac7-ce82-41e3-a4c2-1d4763cf468d.mp3",
                "size": 451053,
                "duration": 56380,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:03:32.382Z",
                "updated_at": "2023-11-14T18:03:37.11Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/74264ac7-ce82-41e3-a4c2-1d4763cf468d.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/74264ac7-ce82-41e3-a4c2-1d4763cf468d.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/74264ac7-ce82-41e3-a4c2-1d4763cf468d.mp3"
            }
        },
        {
            "id": 673,
            "course_id": 20,
            "content": "0eb77ac8-dc5d-4f9b-96e9-965f1ce50cd8.mp3",
            "category": "audio",
            "attachment_id": "0eb77ac8-dc5d-4f9b-96e9-965f1ce50cd8",
            "order": 28,
            "duration": 60430,
            "created_at": "2023-11-14T18:03:32.397Z",
            "updated_at": "2023-11-14T18:03:37.348Z",
            "attachment": {
                "id": 11851,
                "attachment_id": "0eb77ac8-dc5d-4f9b-96e9-965f1ce50cd8",
                "name": "0eb77ac8-dc5d-4f9b-96e9-965f1ce50cd8.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/0eb77ac8-dc5d-4f9b-96e9-965f1ce50cd8.mp3",
                "size": 483501,
                "duration": 60430,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:03:32.383Z",
                "updated_at": "2023-11-14T18:03:37.342Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/0eb77ac8-dc5d-4f9b-96e9-965f1ce50cd8.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/0eb77ac8-dc5d-4f9b-96e9-965f1ce50cd8.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/0eb77ac8-dc5d-4f9b-96e9-965f1ce50cd8.mp3"
            }
        },
        {
            "id": 674,
            "course_id": 20,
            "content": "ca62a4cf-6770-4ad7-992a-cc79694bff6a.mp3",
            "category": "audio",
            "attachment_id": "ca62a4cf-6770-4ad7-992a-cc79694bff6a",
            "order": 29,
            "duration": 45190,
            "created_at": "2023-11-14T18:03:32.397Z",
            "updated_at": "2023-11-14T18:03:37.572Z",
            "attachment": {
                "id": 11852,
                "attachment_id": "ca62a4cf-6770-4ad7-992a-cc79694bff6a",
                "name": "ca62a4cf-6770-4ad7-992a-cc79694bff6a.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/ca62a4cf-6770-4ad7-992a-cc79694bff6a.mp3",
                "size": 361581,
                "duration": 45190,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:03:32.384Z",
                "updated_at": "2023-11-14T18:03:37.567Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/ca62a4cf-6770-4ad7-992a-cc79694bff6a.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/ca62a4cf-6770-4ad7-992a-cc79694bff6a.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/ca62a4cf-6770-4ad7-992a-cc79694bff6a.mp3"
            }
        },
        {
            "id": 675,
            "course_id": 20,
            "content": "4574c59f-87fa-4cd5-b403-879a842a5c8e.mp3",
            "category": "audio",
            "attachment_id": "4574c59f-87fa-4cd5-b403-879a842a5c8e",
            "order": 30,
            "duration": 38500,
            "created_at": "2023-11-14T18:03:32.397Z",
            "updated_at": "2023-11-14T18:03:37.792Z",
            "attachment": {
                "id": 11853,
                "attachment_id": "4574c59f-87fa-4cd5-b403-879a842a5c8e",
                "name": "4574c59f-87fa-4cd5-b403-879a842a5c8e.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/4574c59f-87fa-4cd5-b403-879a842a5c8e.mp3",
                "size": 308013,
                "duration": 38500,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:03:32.385Z",
                "updated_at": "2023-11-14T18:03:37.788Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/4574c59f-87fa-4cd5-b403-879a842a5c8e.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/4574c59f-87fa-4cd5-b403-879a842a5c8e.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/4574c59f-87fa-4cd5-b403-879a842a5c8e.mp3"
            }
        },
        {
            "id": 676,
            "course_id": 20,
            "content": "472165b5-c75d-476d-ba08-b61998eae364.mp3",
            "category": "audio",
            "attachment_id": "472165b5-c75d-476d-ba08-b61998eae364",
            "order": 31,
            "duration": 58180,
            "created_at": "2023-11-14T18:03:32.397Z",
            "updated_at": "2023-11-14T18:03:38.03Z",
            "attachment": {
                "id": 11854,
                "attachment_id": "472165b5-c75d-476d-ba08-b61998eae364",
                "name": "472165b5-c75d-476d-ba08-b61998eae364.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/472165b5-c75d-476d-ba08-b61998eae364.mp3",
                "size": 465453,
                "duration": 58180,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:03:32.385Z",
                "updated_at": "2023-11-14T18:03:38.024Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/472165b5-c75d-476d-ba08-b61998eae364.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/472165b5-c75d-476d-ba08-b61998eae364.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/472165b5-c75d-476d-ba08-b61998eae364.mp3"
            }
        },
        {
            "id": 677,
            "course_id": 20,
            "content": "0e17884c-6950-4505-b7fd-740f65b8f29b.mp3",
            "category": "audio",
            "attachment_id": "0e17884c-6950-4505-b7fd-740f65b8f29b",
            "order": 32,
            "duration": 21100,
            "created_at": "2023-11-14T18:03:32.397Z",
            "updated_at": "2023-11-14T18:03:38.261Z",
            "attachment": {
                "id": 11855,
                "attachment_id": "0e17884c-6950-4505-b7fd-740f65b8f29b",
                "name": "0e17884c-6950-4505-b7fd-740f65b8f29b.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/0e17884c-6950-4505-b7fd-740f65b8f29b.mp3",
                "size": 168813,
                "duration": 21100,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:03:32.386Z",
                "updated_at": "2023-11-14T18:03:38.252Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/0e17884c-6950-4505-b7fd-740f65b8f29b.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/0e17884c-6950-4505-b7fd-740f65b8f29b.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/0e17884c-6950-4505-b7fd-740f65b8f29b.mp3"
            }
        },
        {
            "id": 678,
            "course_id": 20,
            "content": "4714b6d6-3f31-45d4-886d-dfdd3bec6f2e.png",
            "category": "image",
            "attachment_id": "4714b6d6-3f31-45d4-886d-dfdd3bec6f2e",
            "order": 33,
            "duration": 1000000000,
            "created_at": "2023-11-14T18:03:32.397Z",
            "updated_at": "2023-11-14T18:03:32.397Z",
            "attachment": {
                "id": 11856,
                "attachment_id": "4714b6d6-3f31-45d4-886d-dfdd3bec6f2e",
                "name": "4714b6d6-3f31-45d4-886d-dfdd3bec6f2e.png",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/4714b6d6-3f31-45d4-886d-dfdd3bec6f2e.png",
                "size": 50837,
                "duration": 0,
                "mime_type": "image/png",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:03:32.386Z",
                "updated_at": "2023-11-14T18:03:32.386Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/4714b6d6-3f31-45d4-886d-dfdd3bec6f2e.png",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/4714b6d6-3f31-45d4-886d-dfdd3bec6f2e.png",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/4714b6d6-3f31-45d4-886d-dfdd3bec6f2e.png"
            }
        },
        {
            "id": 679,
            "course_id": 20,
            "content": "0089151c-e743-4061-9b5e-b9b070ab0e44.mp3",
            "category": "audio",
            "attachment_id": "0089151c-e743-4061-9b5e-b9b070ab0e44",
            "order": 34,
            "duration": 25920,
            "created_at": "2023-11-14T18:03:32.397Z",
            "updated_at": "2023-11-14T18:03:38.475Z",
            "attachment": {
                "id": 11857,
                "attachment_id": "0089151c-e743-4061-9b5e-b9b070ab0e44",
                "name": "0089151c-e743-4061-9b5e-b9b070ab0e44.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/0089151c-e743-4061-9b5e-b9b070ab0e44.mp3",
                "size": 207405,
                "duration": 25920,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:03:32.387Z",
                "updated_at": "2023-11-14T18:03:38.47Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/0089151c-e743-4061-9b5e-b9b070ab0e44.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/0089151c-e743-4061-9b5e-b9b070ab0e44.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/0089151c-e743-4061-9b5e-b9b070ab0e44.mp3"
            }
        },
        {
            "id": 680,
            "course_id": 20,
            "content": "Screen Shot 2022-08-22 at 16.16.10.png",
            "category": "image",
            "attachment_id": "0ff06784-0776-408a-b4d7-a9007f020981",
            "order": 35,
            "duration": 1000000000,
            "created_at": "2023-11-14T18:03:32.397Z",
            "updated_at": "2023-11-14T18:03:32.397Z",
            "attachment": {
                "id": 11858,
                "attachment_id": "0ff06784-0776-408a-b4d7-a9007f020981",
                "name": "Screen Shot 2022-08-22 at 16.16.10.png",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/0ff06784-0776-408a-b4d7-a9007f020981.png",
                "size": 44171,
                "duration": 0,
                "mime_type": "image/png",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:03:32.387Z",
                "updated_at": "2023-11-14T18:03:32.387Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/0ff06784-0776-408a-b4d7-a9007f020981.png",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/0ff06784-0776-408a-b4d7-a9007f020981.png",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/0ff06784-0776-408a-b4d7-a9007f020981.png"
            }
        },
        {
            "id": 681,
            "course_id": 20,
            "content": "7f1f4188-a8bc-4d08-b091-dbda2174279d.mp3",
            "category": "audio",
            "attachment_id": "7f1f4188-a8bc-4d08-b091-dbda2174279d",
            "order": 36,
            "duration": 15980,
            "created_at": "2023-11-14T18:03:32.397Z",
            "updated_at": "2023-11-14T18:03:38.7Z",
            "attachment": {
                "id": 11859,
                "attachment_id": "7f1f4188-a8bc-4d08-b091-dbda2174279d",
                "name": "7f1f4188-a8bc-4d08-b091-dbda2174279d.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/7f1f4188-a8bc-4d08-b091-dbda2174279d.mp3",
                "size": 127917,
                "duration": 15980,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:03:32.388Z",
                "updated_at": "2023-11-14T18:03:38.696Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/7f1f4188-a8bc-4d08-b091-dbda2174279d.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/7f1f4188-a8bc-4d08-b091-dbda2174279d.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/7f1f4188-a8bc-4d08-b091-dbda2174279d.mp3"
            }
        },
        {
            "id": 682,
            "course_id": 20,
            "content": "212378c2-d774-4f90-84f0-e5c4bbec220f.mp3",
            "category": "audio",
            "attachment_id": "212378c2-d774-4f90-84f0-e5c4bbec220f",
            "order": 37,
            "duration": 53590,
            "created_at": "2023-11-14T18:03:32.397Z",
            "updated_at": "2023-11-14T18:03:38.919Z",
            "attachment": {
                "id": 11860,
                "attachment_id": "212378c2-d774-4f90-84f0-e5c4bbec220f",
                "name": "212378c2-d774-4f90-84f0-e5c4bbec220f.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/212378c2-d774-4f90-84f0-e5c4bbec220f.mp3",
                "size": 428781,
                "duration": 53590,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:03:32.389Z",
                "updated_at": "2023-11-14T18:03:38.912Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/212378c2-d774-4f90-84f0-e5c4bbec220f.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/212378c2-d774-4f90-84f0-e5c4bbec220f.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/212378c2-d774-4f90-84f0-e5c4bbec220f.mp3"
            }
        },
        {
            "id": 683,
            "course_id": 20,
            "content": "0ae14bfd-1490-4792-8062-13892fef4d50.mp3",
            "category": "audio",
            "attachment_id": "0ae14bfd-1490-4792-8062-13892fef4d50",
            "order": 38,
            "duration": 60050,
            "created_at": "2023-11-14T18:03:32.397Z",
            "updated_at": "2023-11-14T18:03:39.177Z",
            "attachment": {
                "id": 11861,
                "attachment_id": "0ae14bfd-1490-4792-8062-13892fef4d50",
                "name": "0ae14bfd-1490-4792-8062-13892fef4d50.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/0ae14bfd-1490-4792-8062-13892fef4d50.mp3",
                "size": 480429,
                "duration": 60050,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:03:32.391Z",
                "updated_at": "2023-11-14T18:03:39.172Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/0ae14bfd-1490-4792-8062-13892fef4d50.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/0ae14bfd-1490-4792-8062-13892fef4d50.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/0ae14bfd-1490-4792-8062-13892fef4d50.mp3"
            }
        },
        {
            "id": 684,
            "course_id": 20,
            "content": "d06d6e27-8296-4fd7-a5c8-14eb6a1be602.mp3",
            "category": "audio",
            "attachment_id": "d06d6e27-8296-4fd7-a5c8-14eb6a1be602",
            "order": 39,
            "duration": 31270,
            "created_at": "2023-11-14T18:03:32.397Z",
            "updated_at": "2023-11-14T18:03:39.4Z",
            "attachment": {
                "id": 11862,
                "attachment_id": "d06d6e27-8296-4fd7-a5c8-14eb6a1be602",
                "name": "d06d6e27-8296-4fd7-a5c8-14eb6a1be602.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/d06d6e27-8296-4fd7-a5c8-14eb6a1be602.mp3",
                "size": 250221,
                "duration": 31270,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:03:32.392Z",
                "updated_at": "2023-11-14T18:03:39.395Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/d06d6e27-8296-4fd7-a5c8-14eb6a1be602.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/d06d6e27-8296-4fd7-a5c8-14eb6a1be602.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/d06d6e27-8296-4fd7-a5c8-14eb6a1be602.mp3"
            }
        },
        {
            "id": 685,
            "course_id": 20,
            "content": "4c368619-b67f-4ca8-b442-315281b73003.mp3",
            "category": "audio",
            "attachment_id": "4c368619-b67f-4ca8-b442-315281b73003",
            "order": 40,
            "duration": 37060,
            "created_at": "2023-11-14T18:03:32.397Z",
            "updated_at": "2023-11-14T18:03:39.611Z",
            "attachment": {
                "id": 11863,
                "attachment_id": "4c368619-b67f-4ca8-b442-315281b73003",
                "name": "4c368619-b67f-4ca8-b442-315281b73003.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/4c368619-b67f-4ca8-b442-315281b73003.mp3",
                "size": 296493,
                "duration": 37060,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:03:32.393Z",
                "updated_at": "2023-11-14T18:03:39.603Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/4c368619-b67f-4ca8-b442-315281b73003.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/4c368619-b67f-4ca8-b442-315281b73003.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/4c368619-b67f-4ca8-b442-315281b73003.mp3"
            }
        },
        {
            "id": 686,
            "course_id": 20,
            "content": "9ec181a1-e009-454d-bae7-4fb959046c6c.mp3",
            "category": "audio",
            "attachment_id": "9ec181a1-e009-454d-bae7-4fb959046c6c",
            "order": 41,
            "duration": 43750,
            "created_at": "2023-11-14T18:03:32.397Z",
            "updated_at": "2023-11-14T18:03:39.822Z",
            "attachment": {
                "id": 11864,
                "attachment_id": "9ec181a1-e009-454d-bae7-4fb959046c6c",
                "name": "9ec181a1-e009-454d-bae7-4fb959046c6c.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/9ec181a1-e009-454d-bae7-4fb959046c6c.mp3",
                "size": 350061,
                "duration": 43750,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:03:32.393Z",
                "updated_at": "2023-11-14T18:03:39.817Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/9ec181a1-e009-454d-bae7-4fb959046c6c.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/9ec181a1-e009-454d-bae7-4fb959046c6c.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/9ec181a1-e009-454d-bae7-4fb959046c6c.mp3"
            }
        },
        {
            "id": 687,
            "course_id": 20,
            "content": "1bed8ec7-e732-4d31-be9c-376016f35cd5.mp3",
            "category": "audio",
            "attachment_id": "1bed8ec7-e732-4d31-be9c-376016f35cd5",
            "order": 42,
            "duration": 45940,
            "created_at": "2023-11-14T18:03:32.397Z",
            "updated_at": "2023-11-14T18:03:40.065Z",
            "attachment": {
                "id": 11865,
                "attachment_id": "1bed8ec7-e732-4d31-be9c-376016f35cd5",
                "name": "1bed8ec7-e732-4d31-be9c-376016f35cd5.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/1bed8ec7-e732-4d31-be9c-376016f35cd5.mp3",
                "size": 367533,
                "duration": 45940,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:03:32.394Z",
                "updated_at": "2023-11-14T18:03:40.041Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/1bed8ec7-e732-4d31-be9c-376016f35cd5.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/1bed8ec7-e732-4d31-be9c-376016f35cd5.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/1bed8ec7-e732-4d31-be9c-376016f35cd5.mp3"
            }
        },
        {
            "id": 688,
            "course_id": 20,
            "content": "2d6ca975-1eea-4979-93c2-b0452e9b9b39.mp3",
            "category": "audio",
            "attachment_id": "2d6ca975-1eea-4979-93c2-b0452e9b9b39",
            "order": 43,
            "duration": 41260,
            "created_at": "2023-11-14T18:03:32.397Z",
            "updated_at": "2023-11-14T18:03:40.294Z",
            "attachment": {
                "id": 11866,
                "attachment_id": "2d6ca975-1eea-4979-93c2-b0452e9b9b39",
                "name": "2d6ca975-1eea-4979-93c2-b0452e9b9b39.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/2d6ca975-1eea-4979-93c2-b0452e9b9b39.mp3",
                "size": 330093,
                "duration": 41260,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:03:32.394Z",
                "updated_at": "2023-11-14T18:03:40.288Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/2d6ca975-1eea-4979-93c2-b0452e9b9b39.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/2d6ca975-1eea-4979-93c2-b0452e9b9b39.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/2d6ca975-1eea-4979-93c2-b0452e9b9b39.mp3"
            }
        },
        {
            "id": 689,
            "course_id": 20,
            "content": "0c8e7398-0728-466a-b78f-1926d0c21278.mp3",
            "category": "audio",
            "attachment_id": "0c8e7398-0728-466a-b78f-1926d0c21278",
            "order": 44,
            "duration": 21430,
            "created_at": "2023-11-14T18:03:32.397Z",
            "updated_at": "2023-11-14T18:03:40.503Z",
            "attachment": {
                "id": 11867,
                "attachment_id": "0c8e7398-0728-466a-b78f-1926d0c21278",
                "name": "0c8e7398-0728-466a-b78f-1926d0c21278.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/0c8e7398-0728-466a-b78f-1926d0c21278.mp3",
                "size": 171501,
                "duration": 21430,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:03:32.395Z",
                "updated_at": "2023-11-14T18:03:40.497Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/0c8e7398-0728-466a-b78f-1926d0c21278.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/0c8e7398-0728-466a-b78f-1926d0c21278.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/0c8e7398-0728-466a-b78f-1926d0c21278.mp3"
            }
        }
    ]
}