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diff --git a/1000-hours/public/jupyter-notebooks/edge-tts-valcab-pronounciation.ipynb b/1000-hours/public/jupyter-notebooks/edge-tts-valcab-pronounciation.ipynb
index 4f8c7def..1fc11af5 100644
--- a/1000-hours/public/jupyter-notebooks/edge-tts-valcab-pronounciation.ipynb
+++ b/1000-hours/public/jupyter-notebooks/edge-tts-valcab-pronounciation.ipynb
@@ -162,7 +162,7 @@
},
{
"cell_type": "code",
- "execution_count": 40,
+ "execution_count": 44,
"id": "00939422-fbf9-4842-b82a-b6106624c075",
"metadata": {},
"outputs": [
@@ -179,7 +179,7 @@
"import edge_tts\n",
"import pygame\n",
"\n",
- "TEXT = \"more\"\n",
+ "TEXT = \"please,police\"\n",
"Wordlist = TEXT.split(\",\")\n",
"\n",
"for w in Wordlist:\n",
@@ -207,7 +207,7 @@
},
{
"cell_type": "code",
- "execution_count": 39,
+ "execution_count": 41,
"id": "474c3f39-11ed-4d0a-b039-63df8b270044",
"metadata": {},
"outputs": [
@@ -224,7 +224,7 @@
"import edge_tts\n",
"import pygame\n",
"\n",
- "TEXT = \"dog,god\"\n",
+ "TEXT = \"take,water,fitness,witness,winter\"\n",
"Wordlist = TEXT.split(\",\")\n",
"\n",
"for w in Wordlist:\n",
diff --git a/1000-hours/sounds-of-american-english/2.2.2-pb.md b/1000-hours/sounds-of-american-english/2.2.2-pb.md
index bcc0c96e..8669753c 100644
--- a/1000-hours/sounds-of-american-english/2.2.2-pb.md
+++ b/1000-hours/sounds-of-american-english/2.2.2-pb.md
@@ -12,8 +12,8 @@ Both consonants naturally have a slight `ʊ` sound, which is a byproduct of the
Chinese students often struggle to distinguish between *please* and *police* at first when learning English. But they are distinctly different:
-* *please* 只有一个音节：`/pliːz/`，而 *police* 有两个音节： `/pəˈliːs/`；
-* *please* consists of a single syllable: `/pliːz/`, while *police* has two syllables: `/pəˈliːs/`.
+* *please* 只有一个音节：`/pliːz/`，而 *police* 有两个音节： `/pəˈliːs/`；
+* *please* consists of a single syllable: `/pliːz/`, while *police* has two syllables: `/pəˈliːs/`.
* 前者末尾的辅音是 `z`，后者末尾的辅音是 `s`；
* The final consonant in *please* is a `z` sound, whereas in *police*, it's an `s` sound.
* 最关键的，前者开头最多听起来是 `pʊ`，而后者不一样，是 `p` 和另外一个元音构成的音节： `pə`……
diff --git a/1000-hours/sounds-of-american-english/2.2.3-td.md b/1000-hours/sounds-of-american-english/2.2.3-td.md
index bde44fa2..1fc7eb45 100644
--- a/1000-hours/sounds-of-american-english/2.2.3-td.md
+++ b/1000-hours/sounds-of-american-english/2.2.3-td.md
@@ -1,6 +1,6 @@
# 2.2.3 `t/d`
-虽然每种语言都有这两个辅音，但，英文的 `t/d` 的发声关键在于起始的舌尖位置 —— 顶在龈脊（alveolar ridge）上，而不是贴在牙齿上。
+虽然每种语言都有这两个辅音，但，英文的 `t/d` 的发声关键在于起始的舌尖位置 —— 顶在**龈脊**（*alveolar ridge*）上，而不是贴在牙齿上。
While every language has the consonants `t` and `d`, the key to pronouncing them in English lies in the starting position of the tip of the tongue - it should touch the *alveolar ridge*, not the *teeth*.
@@ -22,15 +22,15 @@ Additionally, just as the `p` and `b` sound naturally carries a slight `ʊ` soun
In the Chinese phonetic system, `i` following `t/d` is similar to `i` in English phonetic notation. Meanwhile, `i` after `z/c/s` is pronounced as `ɤ`. So, according to the habits of their native language, Chinese speakers tend to pronounce `t(ɤ)` as `tə`, and `d(ɤ)` as `də`. This calls for establishing a new habit.
-`t` 这个音素，也许是英文语音里最复杂的一个 —— 当然也是最常用的一个。美式英语中，`t` 的变体（allophone）至少有四个：
+`t` 这个音素，也许是美式英语的辅音里最复杂的一个 —— 当然也是最常用的一个。美式英语中，`t` 的变体（allophone）至少有四个：
-The `t` sound may be the most complex in American English pronunciation — and certainly one of the most frequently used. In American English, at least four variations, or allophones, of `t` exist:
+The `t` sound may be the most complex in American English consonant pronunciations — and certainly one of the most frequently used. In American English, at least four variations, or *allophones*, of `t` exist:
-> * 正常音 `t` - 只有 `t` 处于重音音节开头的时候才被正常读出，比如，*take* `/teɪk/`；
-> * Standard `t` - This is the typical pronunciation, only used when `t` begins a stressed syllable, as in *take* `/teɪk/`.
-> * 弹舌音 `t̬` - 夹在两个元音中间的 `t` 会变成接近 `d` 的弹舌音 `t̬`，比如，*water* `/ˈwɔt̬ɚ/`；
-> * Flapped `t̬`: When `t` is situated between two vowels, it tends to be flapped `t̬`, sounding like `d`, as in water `/ˈwɔt̬ɚ/`.
-> * 喉塞音 `ʔ` - `m/n` 之前的 `t` 有可能变成喉塞音 `ʔ`，比如，*utmost* `/ˈəʔˌmoʊst/`, *fitness* `/ˈfɪʔnəs/`, *witness* `/wiʔnetss*/`；
-> * Glottal Stop `ʔ` - The `t` before `n` might transform into a glottal stop, as in *utmost* `/ˈəʔˌmoʊst/`, *fitness* `/ˈfɪʔnəs/`, or *witness* `/wiʔnetss*/`.
-> * 省略音 `·` - `n` 之后的 `t` 可能会被省略掉，比如，*winter* `/ˈwɪn·ər/`……
-> * Dropped `·` - The `t` following `n` might be omitted, as in winter `/ˈwɪn·ər/`...
+> * 正常音 `t` - 只有 `t` 处于重音音节开头的时候才被正常读出，比如，*take* `/teɪk/`；
+> * Standard `t` - This is the typical pronunciation, only used when `t` begins a stressed syllable, as in *take* `/teɪk/`.
+> * 弹舌音 `t̬` - 夹在两个元音中间的 `t` 会变成接近 `d` 的弹舌音 `t̬`，比如，*water* `/ˈwɑː·t̬ɚ/`；
+> * Flaping `t̬`: When `t` is situated between two vowels, it tends to be flaping `t̬`, sounding like `d`, as in water `/ˈwɑː·t̬ɚ/`.
+> * 喉塞音 `ʔ` - `m/n` 之前的 `t` 有可能变成喉塞音 `ʔ`，比如，*utmost* `/ˈəʔˌmoʊst/`, *fitness* `/ˈfɪʔ·nəs/`, *witness* `/ˈwɪʔ·nəs/`；
+> * Glottal Stop `ʔ` - The `t` before `n` might transform into a glottal stop, as in *utmost* `/ˈəʔˌmoʊst/`, *fitness* `/ˈfɪʔ·nəs/`, or *witness* `/ˈwɪʔ·nəs/`.
+> * 省略音 `ᵗ` - `n` 之后的 `t` 可能会被省略掉，比如，*winter* `/ˈwɪnᵗ·ər/`……
+> * Optional `ᵗ` - The `t` following `n` might be omitted, as in *winter* `/ˈwɪnᵗ·ər/`...