{
    "ts": 1729074259641,
    "data": [
        {
            "id": 1670,
            "course_id": 55,
            "content": "e02e7fec-f753-4023-a559-c30674ffa88e.mp3",
            "category": "audio",
            "attachment_id": "e02e7fec-f753-4023-a559-c30674ffa88e",
            "order": 1,
            "duration": 44230,
            "created_at": "2023-11-14T18:09:48.099Z",
            "updated_at": "2023-11-14T18:09:48.341Z",
            "attachment": {
                "id": 12781,
                "attachment_id": "e02e7fec-f753-4023-a559-c30674ffa88e",
                "name": "e02e7fec-f753-4023-a559-c30674ffa88e.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/e02e7fec-f753-4023-a559-c30674ffa88e.mp3",
                "size": 353901,
                "duration": 44230,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:09:48.08Z",
                "updated_at": "2023-11-14T18:09:48.332Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/e02e7fec-f753-4023-a559-c30674ffa88e.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/e02e7fec-f753-4023-a559-c30674ffa88e.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/e02e7fec-f753-4023-a559-c30674ffa88e.mp3"
            }
        },
        {
            "id": 1671,
            "course_id": 55,
            "content": "3dd36125-5f31-429c-866a-21c42c3f2469.mp3",
            "category": "audio",
            "attachment_id": "3dd36125-5f31-429c-866a-21c42c3f2469",
            "order": 3,
            "duration": 40660,
            "created_at": "2023-11-14T18:09:48.099Z",
            "updated_at": "2023-11-14T18:09:48.589Z",
            "attachment": {
                "id": 12782,
                "attachment_id": "3dd36125-5f31-429c-866a-21c42c3f2469",
                "name": "3dd36125-5f31-429c-866a-21c42c3f2469.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/3dd36125-5f31-429c-866a-21c42c3f2469.mp3",
                "size": 325293,
                "duration": 40660,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:09:48.08Z",
                "updated_at": "2023-11-14T18:09:48.579Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/3dd36125-5f31-429c-866a-21c42c3f2469.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/3dd36125-5f31-429c-866a-21c42c3f2469.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/3dd36125-5f31-429c-866a-21c42c3f2469.mp3"
            }
        },
        {
            "id": 1672,
            "course_id": 55,
            "content": "ad761e10-86ee-4102-a0e6-9c1db20dec7a.mp3",
            "category": "audio",
            "attachment_id": "ad761e10-86ee-4102-a0e6-9c1db20dec7a",
            "order": 4,
            "duration": 42650,
            "created_at": "2023-11-14T18:09:48.099Z",
            "updated_at": "2023-11-14T18:09:48.833Z",
            "attachment": {
                "id": 12783,
                "attachment_id": "ad761e10-86ee-4102-a0e6-9c1db20dec7a",
                "name": "ad761e10-86ee-4102-a0e6-9c1db20dec7a.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/ad761e10-86ee-4102-a0e6-9c1db20dec7a.mp3",
                "size": 341229,
                "duration": 42650,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:09:48.081Z",
                "updated_at": "2023-11-14T18:09:48.828Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/ad761e10-86ee-4102-a0e6-9c1db20dec7a.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/ad761e10-86ee-4102-a0e6-9c1db20dec7a.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/ad761e10-86ee-4102-a0e6-9c1db20dec7a.mp3"
            }
        },
        {
            "id": 1673,
            "course_id": 55,
            "content": "e13e86d4-2ea4-4218-9867-ce365a3105de.mp3",
            "category": "audio",
            "attachment_id": "e13e86d4-2ea4-4218-9867-ce365a3105de",
            "order": 5,
            "duration": 35470,
            "created_at": "2023-11-14T18:09:48.099Z",
            "updated_at": "2023-11-14T18:09:49.045Z",
            "attachment": {
                "id": 12784,
                "attachment_id": "e13e86d4-2ea4-4218-9867-ce365a3105de",
                "name": "e13e86d4-2ea4-4218-9867-ce365a3105de.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/e13e86d4-2ea4-4218-9867-ce365a3105de.mp3",
                "size": 283821,
                "duration": 35470,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:09:48.082Z",
                "updated_at": "2023-11-14T18:09:49.036Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/e13e86d4-2ea4-4218-9867-ce365a3105de.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/e13e86d4-2ea4-4218-9867-ce365a3105de.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/e13e86d4-2ea4-4218-9867-ce365a3105de.mp3"
            }
        },
        {
            "id": 1674,
            "course_id": 55,
            "content": "e48c162b-fd10-439e-aec2-5a3db3ba0387.mp3",
            "category": "audio",
            "attachment_id": "e48c162b-fd10-439e-aec2-5a3db3ba0387",
            "order": 6,
            "duration": 36310,
            "created_at": "2023-11-14T18:09:48.099Z",
            "updated_at": "2023-11-14T18:09:49.248Z",
            "attachment": {
                "id": 12785,
                "attachment_id": "e48c162b-fd10-439e-aec2-5a3db3ba0387",
                "name": "e48c162b-fd10-439e-aec2-5a3db3ba0387.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/e48c162b-fd10-439e-aec2-5a3db3ba0387.mp3",
                "size": 290541,
                "duration": 36310,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:09:48.082Z",
                "updated_at": "2023-11-14T18:09:49.24Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/e48c162b-fd10-439e-aec2-5a3db3ba0387.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/e48c162b-fd10-439e-aec2-5a3db3ba0387.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/e48c162b-fd10-439e-aec2-5a3db3ba0387.mp3"
            }
        },
        {
            "id": 1675,
            "course_id": 55,
            "content": "9293a8ed-9ce5-4639-972d-3b684525d501.png",
            "category": "image",
            "attachment_id": "9293a8ed-9ce5-4639-972d-3b684525d501",
            "order": 7,
            "duration": 1000000000,
            "created_at": "2023-11-14T18:09:48.099Z",
            "updated_at": "2023-11-14T18:09:48.099Z",
            "attachment": {
                "id": 12786,
                "attachment_id": "9293a8ed-9ce5-4639-972d-3b684525d501",
                "name": "9293a8ed-9ce5-4639-972d-3b684525d501.png",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/9293a8ed-9ce5-4639-972d-3b684525d501.png",
                "size": 59396,
                "duration": 0,
                "mime_type": "image/png",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:09:48.083Z",
                "updated_at": "2023-11-14T18:09:48.083Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/9293a8ed-9ce5-4639-972d-3b684525d501.png",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/9293a8ed-9ce5-4639-972d-3b684525d501.png",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/9293a8ed-9ce5-4639-972d-3b684525d501.png"
            }
        },
        {
            "id": 1676,
            "course_id": 55,
            "content": "28ed3994-8b12-4e5f-a36c-3fb3a88770a9.mp3",
            "category": "audio",
            "attachment_id": "28ed3994-8b12-4e5f-a36c-3fb3a88770a9",
            "order": 8,
            "duration": 49390,
            "created_at": "2023-11-14T18:09:48.099Z",
            "updated_at": "2023-11-14T18:09:49.475Z",
            "attachment": {
                "id": 12787,
                "attachment_id": "28ed3994-8b12-4e5f-a36c-3fb3a88770a9",
                "name": "28ed3994-8b12-4e5f-a36c-3fb3a88770a9.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/28ed3994-8b12-4e5f-a36c-3fb3a88770a9.mp3",
                "size": 395181,
                "duration": 49390,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:09:48.084Z",
                "updated_at": "2023-11-14T18:09:49.468Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/28ed3994-8b12-4e5f-a36c-3fb3a88770a9.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/28ed3994-8b12-4e5f-a36c-3fb3a88770a9.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/28ed3994-8b12-4e5f-a36c-3fb3a88770a9.mp3"
            }
        },
        {
            "id": 1677,
            "course_id": 55,
            "content": "10b114d6-843a-48a3-9013-80dcb687868a.mp3",
            "category": "audio",
            "attachment_id": "10b114d6-843a-48a3-9013-80dcb687868a",
            "order": 9,
            "duration": 40540,
            "created_at": "2023-11-14T18:09:48.099Z",
            "updated_at": "2023-11-14T18:09:49.681Z",
            "attachment": {
                "id": 12788,
                "attachment_id": "10b114d6-843a-48a3-9013-80dcb687868a",
                "name": "10b114d6-843a-48a3-9013-80dcb687868a.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/10b114d6-843a-48a3-9013-80dcb687868a.mp3",
                "size": 324333,
                "duration": 40540,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:09:48.084Z",
                "updated_at": "2023-11-14T18:09:49.677Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/10b114d6-843a-48a3-9013-80dcb687868a.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/10b114d6-843a-48a3-9013-80dcb687868a.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/10b114d6-843a-48a3-9013-80dcb687868a.mp3"
            }
        },
        {
            "id": 1678,
            "course_id": 55,
            "content": "b4fd4377-3f21-4d35-a2fc-936cd0c88be3.mp3",
            "category": "audio",
            "attachment_id": "b4fd4377-3f21-4d35-a2fc-936cd0c88be3",
            "order": 10,
            "duration": 47740,
            "created_at": "2023-11-14T18:09:48.099Z",
            "updated_at": "2023-11-14T18:09:49.918Z",
            "attachment": {
                "id": 12789,
                "attachment_id": "b4fd4377-3f21-4d35-a2fc-936cd0c88be3",
                "name": "b4fd4377-3f21-4d35-a2fc-936cd0c88be3.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/b4fd4377-3f21-4d35-a2fc-936cd0c88be3.mp3",
                "size": 381933,
                "duration": 47740,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:09:48.085Z",
                "updated_at": "2023-11-14T18:09:49.913Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/b4fd4377-3f21-4d35-a2fc-936cd0c88be3.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/b4fd4377-3f21-4d35-a2fc-936cd0c88be3.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/b4fd4377-3f21-4d35-a2fc-936cd0c88be3.mp3"
            }
        },
        {
            "id": 1679,
            "course_id": 55,
            "content": "35a698ba-e22d-4c0b-8f13-1131f4b2cabb.mp3",
            "category": "audio",
            "attachment_id": "35a698ba-e22d-4c0b-8f13-1131f4b2cabb",
            "order": 11,
            "duration": 44280,
            "created_at": "2023-11-14T18:09:48.099Z",
            "updated_at": "2023-11-14T18:09:50.132Z",
            "attachment": {
                "id": 12790,
                "attachment_id": "35a698ba-e22d-4c0b-8f13-1131f4b2cabb",
                "name": "35a698ba-e22d-4c0b-8f13-1131f4b2cabb.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/35a698ba-e22d-4c0b-8f13-1131f4b2cabb.mp3",
                "size": 354285,
                "duration": 44280,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:09:48.086Z",
                "updated_at": "2023-11-14T18:09:50.126Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/35a698ba-e22d-4c0b-8f13-1131f4b2cabb.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/35a698ba-e22d-4c0b-8f13-1131f4b2cabb.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/35a698ba-e22d-4c0b-8f13-1131f4b2cabb.mp3"
            }
        },
        {
            "id": 1680,
            "course_id": 55,
            "content": "cb152c79-9316-4d54-a664-eceba4a1b05b.mp3",
            "category": "audio",
            "attachment_id": "cb152c79-9316-4d54-a664-eceba4a1b05b",
            "order": 12,
            "duration": 60050,
            "created_at": "2023-11-14T18:09:48.099Z",
            "updated_at": "2023-11-14T18:09:50.353Z",
            "attachment": {
                "id": 12791,
                "attachment_id": "cb152c79-9316-4d54-a664-eceba4a1b05b",
                "name": "cb152c79-9316-4d54-a664-eceba4a1b05b.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/cb152c79-9316-4d54-a664-eceba4a1b05b.mp3",
                "size": 480429,
                "duration": 60050,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:09:48.086Z",
                "updated_at": "2023-11-14T18:09:50.348Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/cb152c79-9316-4d54-a664-eceba4a1b05b.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/cb152c79-9316-4d54-a664-eceba4a1b05b.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/cb152c79-9316-4d54-a664-eceba4a1b05b.mp3"
            }
        },
        {
            "id": 1681,
            "course_id": 55,
            "content": "b06bcce4-04fe-42c4-b745-7cf011dba512.mp3",
            "category": "audio",
            "attachment_id": "b06bcce4-04fe-42c4-b745-7cf011dba512",
            "order": 13,
            "duration": 42260,
            "created_at": "2023-11-14T18:09:48.099Z",
            "updated_at": "2023-11-14T18:09:50.56Z",
            "attachment": {
                "id": 12792,
                "attachment_id": "b06bcce4-04fe-42c4-b745-7cf011dba512",
                "name": "b06bcce4-04fe-42c4-b745-7cf011dba512.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/b06bcce4-04fe-42c4-b745-7cf011dba512.mp3",
                "size": 338157,
                "duration": 42260,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:09:48.087Z",
                "updated_at": "2023-11-14T18:09:50.555Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/b06bcce4-04fe-42c4-b745-7cf011dba512.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/b06bcce4-04fe-42c4-b745-7cf011dba512.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/b06bcce4-04fe-42c4-b745-7cf011dba512.mp3"
            }
        },
        {
            "id": 1682,
            "course_id": 55,
            "content": "20dd7779-117c-4b48-af53-abe47ecbfbc1.mp3",
            "category": "audio",
            "attachment_id": "20dd7779-117c-4b48-af53-abe47ecbfbc1",
            "order": 14,
            "duration": 51140,
            "created_at": "2023-11-14T18:09:48.099Z",
            "updated_at": "2023-11-14T18:09:50.78Z",
            "attachment": {
                "id": 12793,
                "attachment_id": "20dd7779-117c-4b48-af53-abe47ecbfbc1",
                "name": "20dd7779-117c-4b48-af53-abe47ecbfbc1.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/20dd7779-117c-4b48-af53-abe47ecbfbc1.mp3",
                "size": 409197,
                "duration": 51140,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:09:48.087Z",
                "updated_at": "2023-11-14T18:09:50.774Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/20dd7779-117c-4b48-af53-abe47ecbfbc1.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/20dd7779-117c-4b48-af53-abe47ecbfbc1.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/20dd7779-117c-4b48-af53-abe47ecbfbc1.mp3"
            }
        },
        {
            "id": 1683,
            "course_id": 55,
            "content": "232391b0-81bf-4cda-893e-af078f306bca.mp3",
            "category": "audio",
            "attachment_id": "232391b0-81bf-4cda-893e-af078f306bca",
            "order": 15,
            "duration": 32570,
            "created_at": "2023-11-14T18:09:48.099Z",
            "updated_at": "2023-11-14T18:09:51.031Z",
            "attachment": {
                "id": 12794,
                "attachment_id": "232391b0-81bf-4cda-893e-af078f306bca",
                "name": "232391b0-81bf-4cda-893e-af078f306bca.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/232391b0-81bf-4cda-893e-af078f306bca.mp3",
                "size": 260589,
                "duration": 32570,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:09:48.088Z",
                "updated_at": "2023-11-14T18:09:51.027Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/232391b0-81bf-4cda-893e-af078f306bca.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/232391b0-81bf-4cda-893e-af078f306bca.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/232391b0-81bf-4cda-893e-af078f306bca.mp3"
            }
        },
        {
            "id": 1684,
            "course_id": 55,
            "content": "1. 难度来自于 “未知关联”\n2. 难度来自于 “技能复合”",
            "category": "text",
            "attachment_id": "",
            "order": 16,
            "duration": 1000000000,
            "created_at": "2023-11-14T18:09:48.099Z",
            "updated_at": "2023-11-14T18:09:48.099Z",
            "attachment": null
        },
        {
            "id": 1685,
            "course_id": 55,
            "content": "2d2ab1d0-eb27-4e9b-86d3-1aad4b2b3553.mp3",
            "category": "audio",
            "attachment_id": "2d2ab1d0-eb27-4e9b-86d3-1aad4b2b3553",
            "order": 17,
            "duration": 40100,
            "created_at": "2023-11-14T18:09:48.099Z",
            "updated_at": "2023-11-14T18:09:51.248Z",
            "attachment": {
                "id": 12795,
                "attachment_id": "2d2ab1d0-eb27-4e9b-86d3-1aad4b2b3553",
                "name": "2d2ab1d0-eb27-4e9b-86d3-1aad4b2b3553.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/2d2ab1d0-eb27-4e9b-86d3-1aad4b2b3553.mp3",
                "size": 320877,
                "duration": 40100,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:09:48.088Z",
                "updated_at": "2023-11-14T18:09:51.243Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/2d2ab1d0-eb27-4e9b-86d3-1aad4b2b3553.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/2d2ab1d0-eb27-4e9b-86d3-1aad4b2b3553.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/2d2ab1d0-eb27-4e9b-86d3-1aad4b2b3553.mp3"
            }
        },
        {
            "id": 1686,
            "course_id": 55,
            "content": "2275d802-9736-4e5f-9afb-3eec5f5e727c.mp3",
            "category": "audio",
            "attachment_id": "2275d802-9736-4e5f-9afb-3eec5f5e727c",
            "order": 18,
            "duration": 47160,
            "created_at": "2023-11-14T18:09:48.099Z",
            "updated_at": "2023-11-14T18:09:51.467Z",
            "attachment": {
                "id": 12796,
                "attachment_id": "2275d802-9736-4e5f-9afb-3eec5f5e727c",
                "name": "2275d802-9736-4e5f-9afb-3eec5f5e727c.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/2275d802-9736-4e5f-9afb-3eec5f5e727c.mp3",
                "size": 377325,
                "duration": 47160,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:09:48.091Z",
                "updated_at": "2023-11-14T18:09:51.46Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/2275d802-9736-4e5f-9afb-3eec5f5e727c.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/2275d802-9736-4e5f-9afb-3eec5f5e727c.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/2275d802-9736-4e5f-9afb-3eec5f5e727c.mp3"
            }
        },
        {
            "id": 1687,
            "course_id": 55,
            "content": "a742eb3b-76aa-4364-9321-27d8f4eccd0a.mp3",
            "category": "audio",
            "attachment_id": "a742eb3b-76aa-4364-9321-27d8f4eccd0a",
            "order": 19,
            "duration": 56590,
            "created_at": "2023-11-14T18:09:48.099Z",
            "updated_at": "2023-11-14T18:09:51.695Z",
            "attachment": {
                "id": 12797,
                "attachment_id": "a742eb3b-76aa-4364-9321-27d8f4eccd0a",
                "name": "a742eb3b-76aa-4364-9321-27d8f4eccd0a.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/a742eb3b-76aa-4364-9321-27d8f4eccd0a.mp3",
                "size": 452781,
                "duration": 56590,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:09:48.091Z",
                "updated_at": "2023-11-14T18:09:51.685Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/a742eb3b-76aa-4364-9321-27d8f4eccd0a.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/a742eb3b-76aa-4364-9321-27d8f4eccd0a.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/a742eb3b-76aa-4364-9321-27d8f4eccd0a.mp3"
            }
        },
        {
            "id": 1688,
            "course_id": 55,
            "content": "7399babf-ce19-4198-a05c-86d40073651a.mp3",
            "category": "audio",
            "attachment_id": "7399babf-ce19-4198-a05c-86d40073651a",
            "order": 20,
            "duration": 58800,
            "created_at": "2023-11-14T18:09:48.099Z",
            "updated_at": "2023-11-14T18:09:51.939Z",
            "attachment": {
                "id": 12798,
                "attachment_id": "7399babf-ce19-4198-a05c-86d40073651a",
                "name": "7399babf-ce19-4198-a05c-86d40073651a.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/7399babf-ce19-4198-a05c-86d40073651a.mp3",
                "size": 470445,
                "duration": 58800,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:09:48.092Z",
                "updated_at": "2023-11-14T18:09:51.933Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/7399babf-ce19-4198-a05c-86d40073651a.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/7399babf-ce19-4198-a05c-86d40073651a.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/7399babf-ce19-4198-a05c-86d40073651a.mp3"
            }
        },
        {
            "id": 1689,
            "course_id": 55,
            "content": "1. 难度来自于 “未知关联”\n2. 难度来自于 “技能复合”\n3. 难度来自于 \"前置引用“",
            "category": "text",
            "attachment_id": "",
            "order": 21,
            "duration": 1000000000,
            "created_at": "2023-11-14T18:09:48.099Z",
            "updated_at": "2023-11-14T18:09:48.099Z",
            "attachment": null
        },
        {
            "id": 1690,
            "course_id": 55,
            "content": "97945857-d9f2-410f-aa0b-487c2f8a5c99.mp3",
            "category": "audio",
            "attachment_id": "97945857-d9f2-410f-aa0b-487c2f8a5c99",
            "order": 22,
            "duration": 24310,
            "created_at": "2023-11-14T18:09:48.099Z",
            "updated_at": "2023-11-14T18:09:52.151Z",
            "attachment": {
                "id": 12799,
                "attachment_id": "97945857-d9f2-410f-aa0b-487c2f8a5c99",
                "name": "97945857-d9f2-410f-aa0b-487c2f8a5c99.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/97945857-d9f2-410f-aa0b-487c2f8a5c99.mp3",
                "size": 194541,
                "duration": 24310,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:09:48.092Z",
                "updated_at": "2023-11-14T18:09:52.146Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/97945857-d9f2-410f-aa0b-487c2f8a5c99.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/97945857-d9f2-410f-aa0b-487c2f8a5c99.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/97945857-d9f2-410f-aa0b-487c2f8a5c99.mp3"
            }
        },
        {
            "id": 1691,
            "course_id": 55,
            "content": "49e1b4b2-f711-49e5-9fba-e25782356b6a.mp3",
            "category": "audio",
            "attachment_id": "49e1b4b2-f711-49e5-9fba-e25782356b6a",
            "order": 23,
            "duration": 56380,
            "created_at": "2023-11-14T18:09:48.099Z",
            "updated_at": "2023-11-14T18:09:52.387Z",
            "attachment": {
                "id": 12800,
                "attachment_id": "49e1b4b2-f711-49e5-9fba-e25782356b6a",
                "name": "49e1b4b2-f711-49e5-9fba-e25782356b6a.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/49e1b4b2-f711-49e5-9fba-e25782356b6a.mp3",
                "size": 451053,
                "duration": 56380,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:09:48.093Z",
                "updated_at": "2023-11-14T18:09:52.382Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/49e1b4b2-f711-49e5-9fba-e25782356b6a.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/49e1b4b2-f711-49e5-9fba-e25782356b6a.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/49e1b4b2-f711-49e5-9fba-e25782356b6a.mp3"
            }
        },
        {
            "id": 1692,
            "course_id": 55,
            "content": "7afc8d7e-aa98-4035-9efc-2cb471e3329e.mp3",
            "category": "audio",
            "attachment_id": "7afc8d7e-aa98-4035-9efc-2cb471e3329e",
            "order": 24,
            "duration": 51670,
            "created_at": "2023-11-14T18:09:48.099Z",
            "updated_at": "2023-11-14T18:09:52.592Z",
            "attachment": {
                "id": 12801,
                "attachment_id": "7afc8d7e-aa98-4035-9efc-2cb471e3329e",
                "name": "7afc8d7e-aa98-4035-9efc-2cb471e3329e.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/7afc8d7e-aa98-4035-9efc-2cb471e3329e.mp3",
                "size": 413421,
                "duration": 51670,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:09:48.094Z",
                "updated_at": "2023-11-14T18:09:52.586Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/7afc8d7e-aa98-4035-9efc-2cb471e3329e.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/7afc8d7e-aa98-4035-9efc-2cb471e3329e.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/7afc8d7e-aa98-4035-9efc-2cb471e3329e.mp3"
            }
        },
        {
            "id": 1693,
            "course_id": 55,
            "content": "e5285ed7-0f8f-4ac6-9468-2bae07cea6c5.mp3",
            "category": "audio",
            "attachment_id": "e5285ed7-0f8f-4ac6-9468-2bae07cea6c5",
            "order": 25,
            "duration": 49200,
            "created_at": "2023-11-14T18:09:48.099Z",
            "updated_at": "2023-11-14T18:09:52.825Z",
            "attachment": {
                "id": 12802,
                "attachment_id": "e5285ed7-0f8f-4ac6-9468-2bae07cea6c5",
                "name": "e5285ed7-0f8f-4ac6-9468-2bae07cea6c5.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/e5285ed7-0f8f-4ac6-9468-2bae07cea6c5.mp3",
                "size": 393645,
                "duration": 49200,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:09:48.094Z",
                "updated_at": "2023-11-14T18:09:52.819Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/e5285ed7-0f8f-4ac6-9468-2bae07cea6c5.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/e5285ed7-0f8f-4ac6-9468-2bae07cea6c5.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/e5285ed7-0f8f-4ac6-9468-2bae07cea6c5.mp3"
            }
        },
        {
            "id": 1694,
            "course_id": 55,
            "content": "ce91c667-9b35-4558-b99d-e3dcf1e44a8e.mp3",
            "category": "audio",
            "attachment_id": "ce91c667-9b35-4558-b99d-e3dcf1e44a8e",
            "order": 26,
            "duration": 22700,
            "created_at": "2023-11-14T18:09:48.099Z",
            "updated_at": "2023-11-14T18:09:53.046Z",
            "attachment": {
                "id": 12803,
                "attachment_id": "ce91c667-9b35-4558-b99d-e3dcf1e44a8e",
                "name": "ce91c667-9b35-4558-b99d-e3dcf1e44a8e.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/ce91c667-9b35-4558-b99d-e3dcf1e44a8e.mp3",
                "size": 181677,
                "duration": 22700,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:09:48.095Z",
                "updated_at": "2023-11-14T18:09:53.042Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/ce91c667-9b35-4558-b99d-e3dcf1e44a8e.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/ce91c667-9b35-4558-b99d-e3dcf1e44a8e.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/ce91c667-9b35-4558-b99d-e3dcf1e44a8e.mp3"
            }
        },
        {
            "id": 1695,
            "course_id": 55,
            "content": "eee58824-eb84-4249-9ced-0509c0d1cb11.mp3",
            "category": "audio",
            "attachment_id": "eee58824-eb84-4249-9ced-0509c0d1cb11",
            "order": 27,
            "duration": 56140,
            "created_at": "2023-11-14T18:09:48.099Z",
            "updated_at": "2023-11-14T18:09:53.276Z",
            "attachment": {
                "id": 12804,
                "attachment_id": "eee58824-eb84-4249-9ced-0509c0d1cb11",
                "name": "eee58824-eb84-4249-9ced-0509c0d1cb11.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/eee58824-eb84-4249-9ced-0509c0d1cb11.mp3",
                "size": 449133,
                "duration": 56140,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:09:48.095Z",
                "updated_at": "2023-11-14T18:09:53.268Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/eee58824-eb84-4249-9ced-0509c0d1cb11.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/eee58824-eb84-4249-9ced-0509c0d1cb11.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/eee58824-eb84-4249-9ced-0509c0d1cb11.mp3"
            }
        },
        {
            "id": 1696,
            "course_id": 55,
            "content": "e9d9db40-dc38-4c69-acc1-9c9d14e382f8.mp3",
            "category": "audio",
            "attachment_id": "e9d9db40-dc38-4c69-acc1-9c9d14e382f8",
            "order": 28,
            "duration": 29740,
            "created_at": "2023-11-14T18:09:48.099Z",
            "updated_at": "2023-11-14T18:09:53.486Z",
            "attachment": {
                "id": 12805,
                "attachment_id": "e9d9db40-dc38-4c69-acc1-9c9d14e382f8",
                "name": "e9d9db40-dc38-4c69-acc1-9c9d14e382f8.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/e9d9db40-dc38-4c69-acc1-9c9d14e382f8.mp3",
                "size": 237933,
                "duration": 29740,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:09:48.096Z",
                "updated_at": "2023-11-14T18:09:53.481Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/e9d9db40-dc38-4c69-acc1-9c9d14e382f8.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/e9d9db40-dc38-4c69-acc1-9c9d14e382f8.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/e9d9db40-dc38-4c69-acc1-9c9d14e382f8.mp3"
            }
        },
        {
            "id": 1697,
            "course_id": 55,
            "content": "Make everything as simple as possible, not simpler.",
            "category": "text",
            "attachment_id": "",
            "order": 29,
            "duration": 1000000000,
            "created_at": "2023-11-14T18:09:48.099Z",
            "updated_at": "2023-11-14T18:09:48.099Z",
            "attachment": null
        },
        {
            "id": 1698,
            "course_id": 55,
            "content": "c386d3a9-c056-460a-a61f-fd20fd4358bb.mp3",
            "category": "audio",
            "attachment_id": "c386d3a9-c056-460a-a61f-fd20fd4358bb",
            "order": 30,
            "duration": 37270,
            "created_at": "2023-11-14T18:09:48.099Z",
            "updated_at": "2023-11-14T18:09:53.714Z",
            "attachment": {
                "id": 12806,
                "attachment_id": "c386d3a9-c056-460a-a61f-fd20fd4358bb",
                "name": "c386d3a9-c056-460a-a61f-fd20fd4358bb.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/c386d3a9-c056-460a-a61f-fd20fd4358bb.mp3",
                "size": 298221,
                "duration": 37270,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:09:48.097Z",
                "updated_at": "2023-11-14T18:09:53.709Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/c386d3a9-c056-460a-a61f-fd20fd4358bb.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/c386d3a9-c056-460a-a61f-fd20fd4358bb.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/c386d3a9-c056-460a-a61f-fd20fd4358bb.mp3"
            }
        },
        {
            "id": 1699,
            "course_id": 55,
            "content": "ab18e343-e814-482b-a689-ba1361d59f93.mp3",
            "category": "audio",
            "attachment_id": "ab18e343-e814-482b-a689-ba1361d59f93",
            "order": 31,
            "duration": 41380,
            "created_at": "2023-11-14T18:09:48.099Z",
            "updated_at": "2023-11-14T18:09:53.927Z",
            "attachment": {
                "id": 12807,
                "attachment_id": "ab18e343-e814-482b-a689-ba1361d59f93",
                "name": "ab18e343-e814-482b-a689-ba1361d59f93.mp3",
                "thumb": "",
                "raw": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/ab18e343-e814-482b-a689-ba1361d59f93.mp3",
                "size": 331053,
                "duration": 41380,
                "mime_type": "audio/mp3",
                "location": "aws_s3",
                "created_at": "2023-11-14T18:09:48.097Z",
                "updated_at": "2023-11-14T18:09:53.92Z",
                "url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/ab18e343-e814-482b-a689-ba1361d59f93.mp3",
                "raw_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/ab18e343-e814-482b-a689-ba1361d59f93.mp3",
                "thumb_url": "https://xuexi-courses-storage.firesbox.com/7000104654/replay/ab18e343-e814-482b-a689-ba1361d59f93.mp3"
            }
        }
    ]
}