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new file mode 100644
index 00000000..8452f178
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diff --git a/1000-hours/public/audios/us/you-us-male.mp3 b/1000-hours/public/audios/us/you-us-male.mp3
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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 348bc141..c26f4b68 100644
--- a/1000-hours/public/jupyter-notebooks/edge-tts-valcab-pronounciation.ipynb
+++ b/1000-hours/public/jupyter-notebooks/edge-tts-valcab-pronounciation.ipynb
@@ -161,7 +161,7 @@
},
{
"cell_type": "code",
- "execution_count": 53,
+ "execution_count": 62,
"id": "00939422-fbf9-4842-b82a-b6106624c075",
"metadata": {},
"outputs": [
@@ -180,7 +180,7 @@
"import edge_tts\n",
"import pygame\n",
"\n",
- "TEXT = \"sink, think, zed, that\"\n",
+ "TEXT = \"individual\"\n",
"Wordlist = TEXT.split(\",\")\n",
"\n",
"for w in Wordlist:\n",
@@ -280,7 +280,7 @@
},
{
"cell_type": "code",
- "execution_count": 50,
+ "execution_count": 55,
"id": "95b12e63-f92d-49b4-bd51-a2b9d059fd52",
"metadata": {},
"outputs": [
@@ -299,7 +299,7 @@
"import edge_tts\n",
"import pygame\n",
"\n",
- "TEXT = \"very\"\n",
+ "TEXT = \"room\"\n",
"Wordlist = TEXT.split(\",\")\n",
"\n",
"for w in Wordlist:\n",
diff --git a/1000-hours/sounds-of-american-english/1.1-alphabet.md b/1000-hours/sounds-of-american-english/1.1-alphabet.md
index 4debbe02..11c569fd 100644
--- a/1000-hours/sounds-of-american-english/1.1-alphabet.md
+++ b/1000-hours/sounds-of-american-english/1.1-alphabet.md
@@ -10,32 +10,32 @@ Modern English is composed of *26* letters, each with both *uppercase* and *lowe
| Letter | Pronunciation | NATO Phonetic Alphabet |
| --------- | -------------------------------------------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
-| **A** *a* | `/eɪ/` | *Alpha* `/ˈæl·fə/` |
-| **B** *b* | `/biː/` | *Bravo* `/ˈbrɑː·voʊ/` |
-| **C** *c* | `/siː/` | *Charlie* `/ˈtʃɑːr·liː/` |
-| **D** *d* | `/diː/` | *Delta* `/ˈdel·tə/` |
-| **E** *e* | `/iː/` | *Echo* `/ˈek·oʊ/` |
-| **F** *f* | `/ef/` | *Foxtrot* `/ˈfɔːks·trɒt/` |
+| **A** *a* | `/eɪ/` | *Alpha* `/ˈælfə/` |
+| **B** *b* | `/biː/` | *Bravo* `/ˈbrɑːvoʊ/` |
+| **C** *c* | `/siː/` | *Charlie* `/ˈtʃɑːrliː/` |
+| **D** *d* | `/diː/` | *Delta* `/ˈdeltə/` |
+| **E** *e* | `/iː/` | *Echo* `/ˈekoʊ/` |
+| **F** *f* | `/ef/` | *Foxtrot* `/ˈfɔːkstrɒt/` |
| **G** *g* | `/dʒiː/` | *Golf* `/ɡɑːf/` |
| **H** *h* | `/eɪtʃ/` | *Hotel* `/hoʊˈtel/` |
-| **I** *i* | `/aɪ/` | *India* `/ˈɪn·di·ə/` |
+| **I** *i* | `/aɪ/` | *India* `/ˈɪndiə/` |
| **J** *j* | `/dʒeɪ/` | *Juliet* `/ˈdʒuːliːˌet/` |
-| **K** *k* | `/keɪ/` | *Kilo* `/ˈkiː·loʊ/` |
-| **L** *l* | `/el/` | *Lima* `/ˈliː·mə/` |
+| **K** *k* | `/keɪ/` | *Kilo* `/ˈkiːloʊ/` |
+| **L** *l* | `/el/` | *Lima* `/ˈliːmə/` |
| **M** *m* | `/em/` | *Mike* `/maɪk/` |
-| **N** *n* | `/en/` | *November* `/noʊˈvem·bər/` |
-| **O** *o* | `/oʊ/` | *Oscar* `/ˈɑːs·kɑːr/` |
+| **N** *n* | `/en/` | *November* `/noʊˈvembər/` |
+| **O** *o* | `/oʊ/` | *Oscar* `/ˈɑːskɑːr/` |
| **P** *p* | `/piː/` | *Papa* `/pəˈpɑː/` |
| **Q** *q* | `/kjuː/` | *Quebec* `/kəˈbek/` |
-| **R** *r* | `/ɑːr/` | *Romeo* `/ˈroʊ·miːˌoʊ/` |
-| **S** *s* | `/es/` | *Sierra* `/siˈer·ə/` |
-| **T** *t* | `/tiː/` | *Tango* `/ˈtæŋ·ɡoʊ/` |
-| **U** *u* | `/juː/` | *Uniform* `/ˈjuː·nɪ·fɔːrm/` |
-| **V** *v* | `/viː/` | *Victor* `/ˈvɪk·tər/` |
-| **W** *w* | `/ˈdʌb·ᵊl·juː/` | *Whiskey* `/ˈwɪs·kiː/` |
-| **X** *x* | `/eks/` | *X-ray* `/ˈeks·reɪ/` |
-| **Y** *y* | `/waɪ/` | *Yankee* `/ˈjæŋ·kiː/` |
-| **Z** *z* | `/ziː/` | *Zulu* `/ˈzuː·luː/` |
+| **R** *r* | `/ɑːr/` | *Romeo* `/ˈroʊmiːˌoʊ/` |
+| **S** *s* | `/es/` | *Sierra* `/siˈerə/` |
+| **T** *t* | `/tiː/` | *Tango* `/ˈtæŋɡoʊ/` |
+| **U** *u* | `/juː/` | *Uniform* `/ˈjuːnɪfɔːrm/` |
+| **V** *v* | `/viː/` | *Victor* `/ˈvɪktər/` |
+| **W** *w* | `/ˈdʌbᵊljuː/` | *Whiskey* `/ˈwɪskiː/` |
+| **X** *x* | `/eks/` | *X-ray* `/ˈeksreɪ/` |
+| **Y** *y* | `/waɪ/` | *Yankee* `/ˈjæŋkiː/` |
+| **Z** *z* | `/ziː/` | *Zulu* `/ˈzuːluː/` |
在英式英语中,*z* 被读作 `/zed/`。
diff --git a/1000-hours/sounds-of-american-english/1.2-phonemes.md b/1000-hours/sounds-of-american-english/1.2-phonemes.md
index e3982e27..d3c4c9e7 100644
--- a/1000-hours/sounds-of-american-english/1.2-phonemes.md
+++ b/1000-hours/sounds-of-american-english/1.2-phonemes.md
@@ -25,18 +25,18 @@ Here, we use the phonetic notation system from the [Cambridge English Pronouncin
| Vowels | Examples |
| ------ | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `ʌ` | c**u**p `/kʌp/` |
-| `ɑː` | f**a**ther `/ˈfɑː·ðɚ/` |
+| `ɑː` | f**a**ther `/ˈfɑːðɚ/` |
| `e` | h**ea**d `/hed/` |
| `æ` | h**a**t `/hæt/` |
| `ə` | **a**bove `/əˈbʌv/` |
-| `ɚ` | moth**er** `/ˈmʌð·ɚ/` |
+| `ɚ` | moth**er** `/ˈmʌðɚ/` |
| `ɝː` | b**ir**d `/bɝːd/` |
| `ɪ` | sh**i**p `/ʃɪp/` |
-| `i` | happ**y** `/ˈhæp·i/` |
+| `i` | happ**y** `/ˈhæpi/` |
| `iː` | sh**ee**p `/ʃiːp/` |
| `ɔː` | h**or**se `/hɔːrs/` |
| `ʊ` | f**oo**t `/fʊt/` |
-| `u` | sit**u**ation `/ˌsɪtʃ·uˈeɪ·ʃən/` |
+| `u` | sit**u**ation `/ˌsɪtʃuˈeɪʃən/` |
| `uː` | bl**ue** `/bluː/` |
| `eɪ` | d**ay** `/deɪ/` |
| `aɪ` | **eye** `/aɪ/` |
@@ -56,18 +56,18 @@ Here, we use the phonetic notation system from the [Cambridge English Pronouncin
| `p` | **p**en `/pen/` |
| `b` | **b**ook `/bʊk/` |
| `t` | **t**own `/taʊn/` |
-| `t̬` | cu**tt**ing `/ˈkʌt̬·ɪŋ/` |
+| `t̬` | cu**tt**ing `/ˈkʌt̬ɪŋ/` |
| `d` | **d**ay `/deɪ/` |
| `k` | **c**at `/kæt/` |
| `g` | **g**ive `/ɡɪv/` |
| `f` | **f**ish `/fɪʃ/` |
-| `v` | **v**ery `/ˈver·i/` |
+| `v` | **v**ery `/ˈveri/` |
| `s` | **s**ay `/seɪ/` |
| `z` | **z**oo `/zuː/` |
| `θ` | **th**ink `/θɪŋk/` |
| `ð` | **th**is `/ðɪs/` |
| `ʃ` | **sh**e `/ʃiː/` |
-| `ʒ` | vi**si**on `/ˈvɪʒ·ən/` |
+| `ʒ` | vi**si**on `/ˈvɪʒən/` |
| `h` | **h**and `/hænd/` |
| `tʃ` | **ch**eese `/tʃiːz/` |
| `dʒ` | **j**ump `/dʒʌmp/` |
@@ -90,13 +90,11 @@ Here, we use the phonetic notation system from the [Cambridge English Pronouncin
| `ɒ̃` | croiss**ant** |
| `x` | lo**ch** |
-## 1.2.4. 其它符号(Other symbols)
+## 1.2.4. 重音符号(Stress symbols)
| Symbols | Functions | Examples |
| ------- | --------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
-| **ˈ** | primary stress | **vi**sion `/ˈvɪʒ·ən/` |
-| **ˌ** | secondary stress | **con**troversial `/ˌkɑːn·trəˈvɝː·ʃəl/` |
-| **·** | syllable division[^2] | **fa**ther `/ˈfɑː·ðɚ/` |
+| **ˈ** | primary stress | **vi**sion `/ˈvɪʒən/` |
+| **ˌ** | secondary stress | **con**troversial `/ˌkɑːntrəˈvɝːʃəl/` |
[^1]: A Github [repo](https://github.com/zelic91/camdict) offers a *JSON* format database of CEPD.
-[^2]: For better html rendering, a *middle dot* is used, rather than the *lower dot* used by CEPD official documents.
diff --git a/1000-hours/sounds-of-american-english/2.1.3-ʌ.md b/1000-hours/sounds-of-american-english/2.1.3-ʌ.md
index 3f34c400..6f26be6c 100644
--- a/1000-hours/sounds-of-american-english/2.1.3-ʌ.md
+++ b/1000-hours/sounds-of-american-english/2.1.3-ʌ.md
@@ -10,9 +10,9 @@ In terms of mouth shape, the vowel sound `ʌ` requires the lips to be the most c
The American pronunciation of `ʌ` is actually quite similar to `ə`. For instance, the word *but*, pronounced `/bʌt/`, often sounds more like `/bət/`.
-美国人还会再进一步,会把很多非重读音节内的元音简化为 `ə` —— 对此还有个专门的术语,将其称为 *schwa*。所以,*encourage* 这个词英国人和美国人读得不太一样,英国人会读作 `/ɪnˈkʌr·ɪdʒ/`,但,美国人却将其被读成 `/ɪnˈkɝː·ədʒ/`—— 不仅要将 `ʌ` 读成 `ɝː`(长元音),还要将 `ɪ` 变成 *schwa*, `ə`……
+美国人还会再进一步,会把很多非重读音节内的元音简化为 `ə` —— 对此还有个专门的术语,将其称为 *schwa*。所以,*encourage* 这个词英国人和美国人读得不太一样,英国人会读作 `/ɪnˈkʌrɪdʒ/`,但,美国人却将其被读成 `/ɪnˈkɝːədʒ/`—— 不仅要将 `ʌ` 读成 `ɝː`(长元音),还要将 `ɪ` 变成 *schwa*, `ə`……
-They even go a step further, simplifying many unstressed vowel sounds to `ə`, which is particularly referred to as a *schwa*. So, the word *encourage* is pronounced differently by Brits and Americans. Brits say `/ɪnˈkʌr·ɪdʒ/`, while Americans pronounce it as `/ɪnˈkɝː·ədʒ/`. In this case, not only is `ʌ` pronounced as `ə`, but the `ɪ` also turns into a *schwa*, `ə`...
+They even go a step further, simplifying many unstressed vowel sounds to `ə`, which is particularly referred to as a *schwa*. So, the word *encourage* is pronounced differently by Brits and Americans. Brits say `/ɪnˈkʌrɪdʒ/`, while Americans pronounce it as `/ɪnˈkɝːədʒ/`. In this case, not only is `ʌ` pronounced as `ə`, but the `ɪ` also turns into a *schwa*, `ə`...
在美式英语中,长元音 `/ɑː/` 常常会被儿化 —— 加上一个卷舌音 `r`,所以很多美式词典干脆用 `ɑr` 标注(包括 CEPD)。比如,*card* `/kɑrd/`, *mark* `/mɑrk/`。
diff --git a/1000-hours/sounds-of-american-english/2.1.4-e.md b/1000-hours/sounds-of-american-english/2.1.4-e.md
index 540f863d..bcd9dfc5 100644
--- a/1000-hours/sounds-of-american-english/2.1.4-e.md
+++ b/1000-hours/sounds-of-american-english/2.1.4-e.md
@@ -24,6 +24,6 @@ There are two key points to pronouncing `æ`:
> 1. Stretch the sound a little longer
> 2. Open your mouth wider
-其中,第一个要点相对更为重要。你可以多试试这两个词,*apple* `/ˈæp·əl/`,*banana* `/bəˈnæn·ə/`,并刻意把其中的 `æ` 拉得更长一点。
+其中,第一个要点相对更为重要。你可以多试试这两个词,*apple* `/ˈæpəl/`,*banana* `/bəˈnænə/`,并刻意把其中的 `æ` 拉得更长一点。
-The first point is relatively more important. Try saying these two words: *apple* `/ˈæp·əl/` and *banana* `/bəˈnæn·ə/`, and try intentionally stretching the `æ` a little longer.
+The first point is relatively more important. Try saying these two words: *apple* `/ˈæpəl/` and *banana* `/bəˈnænə/`, and try intentionally stretching the `æ` a little longer.
diff --git a/1000-hours/sounds-of-american-english/2.1.5-ə.md b/1000-hours/sounds-of-american-english/2.1.5-ə.md
index 725d6dd5..57ef7371 100644
--- a/1000-hours/sounds-of-american-english/2.1.5-ə.md
+++ b/1000-hours/sounds-of-american-english/2.1.5-ə.md
@@ -4,9 +4,9 @@
In American English, there are three versions of the sound `ə`, including the schwa `ə`, which is used in unstressed syllables, the rhotacized short vowel `ɚ`, and the rhotacized long vowel `ɝː`.
-初学者容易矫枉过正,遇到所有的 `ə` 都要读成儿化音…… 比如,可能会把 *focus* 错读成 `/ˈfoʊ·kɚs/`。
+初学者容易矫枉过正,遇到所有的 `ə` 都要读成儿化音…… 比如,可能会把 *focus* 错读成 `/ˈfoʊkɚs/`。
-Beginners tend to overdo it and add a `r` whenever they encounter these sounds, for example, mispronouncing *focus* as `/ˈfoʊ·kɚs/`.
+Beginners tend to overdo it and add a `r` whenever they encounter these sounds, for example, mispronouncing *focus* as `/ˈfoʊkɚs/`.
`ɚ` 和 `ɝː` 这两个儿化音,有两种发声方式,一种是凭直觉卷起舌尖,这也是绝大多数初学者发这个音的唯一选择。
@@ -26,6 +26,6 @@ Moreover, when pronouncing the consonants `ʃ/ʒ` ([2.2.8](2.2.8-ʃʒ)) and `tʃ
It should be noted, in American English pronunciation, the tongue tip *never* touches the teeth or the *alveolar ridge* when making the rhotacized `ɚ` or `ɝː` sound.
-注意,在连贯的自然语音中,很多非重音音节的元音,都有被简化成 `ə`(*schwa*)的倾向,尤其是 `ɪ`。比如,*individual*, `/ˌɪn·dəˈvɪdʒ·u·əl/`,实际上会被读作 `ˌɪn·dəˈvɪdʒ·ə·wəl` —— `u` 也变成了 `ə`,而后 `u` 和 `ə` 之间有个加音 `w`…… 事实上,现在已经有很多词典干脆直接标注成了后者。
+注意,在连贯的自然语音中,很多非重音音节的元音,都有被简化成 `ə`(*schwa*)的倾向,尤其是 `ɪ`。比如,*individual*, `/ˌɪndəˈvɪdʒuəl/`,实际上会被读作 `ˌɪndəˈvɪdʒəwəl` —— `u` 也变成了 `ə`,而后 `u` 和 `ə` 之间有个加音 `w`…… 事实上,现在已经有很多词典干脆直接标注成了后者。
Keep in mind that in fluent, natural speech, many unstressed vowel sounds in syllables are often simplified to `ə` (*schwa*), especially `ɪ`. For instance, *individual* `/ˌɪndɪˈvɪdʒjʊəl/`, is often actually pronounced as `/ˌɪndəˈvɪdʒəwəl/` - `u` also becomes `ə`, and there's a added `w` sound between `u` and `ə`… In fact, many dictionaries now straightforwardly use the latter phonetic annotation.
diff --git a/1000-hours/sounds-of-american-english/2.2-consonants.md b/1000-hours/sounds-of-american-english/2.2-consonants.md
index 0f3f7cd3..fb6bc8bd 100644
--- a/1000-hours/sounds-of-american-english/2.2-consonants.md
+++ b/1000-hours/sounds-of-american-english/2.2-consonants.md
@@ -1,5 +1,5 @@
# 2.2. 辅音(Consonants)
-地球上的所有语言都一样,在自然语流中,**辅音**不会单独存在。单独的**元音**,可以构成**音节**,也可以构成或者表达意义。比如,*ah* `/ɑː/`, *oh* `/oʊ/`,或者 *Uh-Oh* `/ˈʌ·oʊ/`。但,绝大多数**辅音**必须依附于**元音**才能构成**音节**,并且,单独的辅音也不能构成意义。
+地球上的所有语言都一样,在自然语流中,**辅音**不会单独存在。单独的**元音**,可以构成**音节**,也可以构成或者表达意义。比如,*ah* `/ɑː/`, *oh* `/oʊ/`,或者 *Uh-Oh* `/ˈʌoʊ/`。但,绝大多数**辅音**必须依附于**元音**才能构成**音节**,并且,单独的辅音也不能构成意义。
-All languages on Earth follow a similar pattern: in the flow of natural speech, consonants *never* stand alone. Isolated vowels, however, can form syllables and convey meaning. For instance, you have sounds like *ah* `/ɑː/`, *oh* `/oʊ/`, or *O'Oh* `/ˈɑ·oʊ/`. But consonants almost always need to be attached to vowels to form *syllables*, and alone, they don't carry meaning.
+All languages on Earth follow a similar pattern: in the flow of natural speech, consonants *never* stand alone. Isolated vowels, however, can form syllables and convey meaning. For instance, you have sounds like *ah* `/ɑː/`, *oh* `/oʊ/`, or *O'Oh* `/ˈɑoʊ/`. But consonants almost always need to be attached to vowels to form *syllables*, and alone, they don't carry meaning.
diff --git a/1000-hours/sounds-of-american-english/2.2.11-trdr.md b/1000-hours/sounds-of-american-english/2.2.11-trdr.md
index 95d4257c..83dff2a3 100644
--- a/1000-hours/sounds-of-american-english/2.2.11-trdr.md
+++ b/1000-hours/sounds-of-american-english/2.2.11-trdr.md
@@ -1,9 +1,9 @@
# 2.2.11. `tr/dr`
-`tr/dr` 和 `tʃ/dʒ` 不一样的地方在于,虽然发声时起始的舌尖位置相同,但,`tr, dr` 在发声之前嘴唇要有个缩小成圆形的动作,所以它们开头的音节,总是听起来夹带着一个 `w`,*tree* `/triː`/ 听起来是 `/tʃwiː/`,*dry* `/draɪ/` 听起来是 `/dʒwaɪ/`。
+`tr/dr` 和 `tʃ/dʒ` 不一样的地方在于,虽然发声时起始的舌尖位置相同,但,`tr, dr` 在发声之前嘴唇要有个缩小成圆形的动作,所以它们开头的音节,总是听起来夹带着一个 `w`,*tree* `/triː`/ 听起来是 `/tʃwiː/`,*dry* `/draɪ/` 听起来是 `/dʒwaɪ/`。
-The difference between the sounds `tr, dr` and `tʃ, dʒ` lies in the way they are pronounced. Although the initial tongue position is the same for both sets of sounds, with `tr, dr`, there's a slight rounding of the lips before voicing. As a result, the starting syllables often sound as if there's a `w` blended in. So, the word *tree* `/triː/` can sound like `/tʃwiː/`, and *dry* `/draɪ/` can sound like `/dʒwaɪ/`
+The difference between the sounds `tr, dr` and `tʃ, dʒ` lies in the way they are pronounced. Although the initial tongue position is the same for both sets of sounds, with `tr, dr`, there's a slight rounding of the lips before voicing. As a result, the starting syllables often sound as if there's a `w` blended in. So, the word *tree* `/triː/` can sound like `/tʃwiː/`, and *dry* `/draɪ/` can sound like `/dʒwaɪ/`.
-很多地区的人基于自身母语的习惯,会把 `tr` 和 `dr` 分开着连续读出的。比如,*tree*,印度人可能会把它读成 `/tɤ.riː/`,其中的 `r` 还会用齿龈颤音;再比如,*driver*,可能会被俄罗斯人读成 `/dɤ.raɪvə/` ,其中的 `r` 同样会用齿龈颤音。
+很多地区的人基于自身母语的习惯,会把 `tr` 和 `dr` 分开着连续读出的。比如,*tree*,印度人可能会把它读成 `/tɤ.riː/`,其中的 `t` 干脆读成 `d`,并且 `r` 还会用齿龈颤音;再比如,*driver*,可能会被俄罗斯人读成 `/dɤ.raɪvə/`,其中的 `r` 同样会用齿龈颤音。
-People from many regions, guided by the habits of their native languages, may pronounce `tr` and `dr` as separate, continuous sounds. For instance, someone from India might pronounce *tree* as `/tɤ.riː/`, with the `r` articulated as a [*voiced alveolar trill*](https://en.wikipedia.org/wiki/Voiced_dental,_alveolar_and_postalveolar_trills). Similarly, the word *driver* might be pronounced as `/dɤ.raɪvə/` by a Russian speaker, again using a voiced alveolar trill for the `r`.
+People from many regions, guided by the habits of their native languages, may pronounce `tr` and `dr` as separate, continuous sounds. For instance, someone from India might pronounce *tree* as `/tɤ.riː/`, with the `t` articulated as `d`, and the `r` as a [*voiced alveolar trill*](https://en.wikipedia.org/wiki/Voiced_dental,_alveolar_and_postalveolar_trills). Similarly, the word *driver* might be pronounced as `/dɤ.raɪvə/` by a Russian speaker, again using a voiced alveolar trill for the `r`.
diff --git a/1000-hours/sounds-of-american-english/2.2.12-tsdz.md b/1000-hours/sounds-of-american-english/2.2.12-tsdz.md
index 07d83a01..6d0a8a7a 100644
--- a/1000-hours/sounds-of-american-english/2.2.12-tsdz.md
+++ b/1000-hours/sounds-of-american-english/2.2.12-tsdz.md
@@ -6,6 +6,6 @@ The difference between `ts/dz` and `s/z` lies in the initial tongue position dur

-可以用 *students* `/ˈstudənts/` 这个词反复体会 `s`、`d`、`ts` 的舌尖位置(注意,开头的 `st` 会被读成 `sd`)……
+可以用 *students* `/ˈstudənts/` 这个词反复体会 `s`、`d`、`ts` 的舌尖位置(注意,开头的 `st` 会被读成 `sd`)……
-The word *students* `/ˈstudənts/` can be repeatedly pronounced to understand the tongue positions for `s`, `d`, and `ts` (note that the initial `st` is pronounced like `sd`).
+The word *students* `/ˈstudənts/` can be repeatedly pronounced to understand the tongue positions for `s`, `d`, and `ts` (note that the initial `st` is pronounced like `sd`).
diff --git a/1000-hours/sounds-of-american-english/2.2.13-mnŋ.md b/1000-hours/sounds-of-american-english/2.2.13-mnŋ.md
index e4c87a1a..db80d09f 100644
--- a/1000-hours/sounds-of-american-english/2.2.13-mnŋ.md
+++ b/1000-hours/sounds-of-american-english/2.2.13-mnŋ.md
@@ -16,9 +16,9 @@ The tricky part comes when `m` is at the end of a syllable. A lot of people have
When `m/n` precedes `f/v`, their pronunciation changes - this is because the vocalization of `f/v` requires the upper teeth to touch the lower lip.
-> * `m + f/v` = `n + f/v`, *comfort* `/ˈkəmfərt/` → `/ˈkənfərt/`
-> * `n + f/v` = `ŋ + f/v`, *conversation* `/ˌkɑnvərˈseɪʃən/` → `/ˌkɑŋvərˈseɪʃən/`
+> * `m + f/v` = `n + f/v`, *comfort* `/ˈkəmfərt/` → `/ˈkənfərt/`
+> * `n + f/v` = `ŋ + f/v`, *conversation* `/ˌkɑnvərˈseɪʃən/` → `/ˌkɑŋvərˈseɪʃən/`
-另外,当 `æ` 在 `m` 之前的时候,部分母语使用者会添一个 `ə` 进去,比如,Sam `/sæm/`,会被他们读成 `/sæəm/`。
+另外,当 `æ` 在 `m` 之前的时候,部分母语使用者会添一个 `ə` 进去,比如,Sam `/sæm/`,会被他们读成 `/sæəm/`。
-Additionally, when the vowel sound `æ` comes before `m`, some native speakers add an extra `ə` sound. For example, *Sam* `/sæm/` can sometimes be pronounced as `/sæəm/`.
+Additionally, when the vowel sound `æ` comes before `m`, some native speakers add an extra `ə` sound. For example, *Sam* `/sæm/` can sometimes be pronounced as `/sæəm/`.
diff --git a/1000-hours/sounds-of-american-english/2.2.14-lr.md b/1000-hours/sounds-of-american-english/2.2.14-lr.md
index 8864c669..5d2b24e1 100644
--- a/1000-hours/sounds-of-american-english/2.2.14-lr.md
+++ b/1000-hours/sounds-of-american-english/2.2.14-lr.md
@@ -1,28 +1,28 @@
# 2.2.14. `l`, `r`
-`l` 发声时起始的舌尖位置与 `t/d` 相同。
+`l` 发声时起始的舌尖位置与 `t/d` 相同 —— 即,位置 ③(参见 [1.4](1.4-articulators))。
-When pronouncing the 'l' sound, the tip of the tongue starts in the same position as it does for 't/d'.
+When pronouncing the 'l' sound, the tip of the tongue starts in the same position as it does for 't/d', i.e. position ③ (as described in [1.4](1.4-articulators)).

-`r` 发声时起始的舌尖位置相对更加靠后。
+`r` 发声时起始的舌尖位置相对更加靠后 —— 即,位置 ④(参见 [1.4](1.4-articulators))
+
+For the 'r' sound, the tongue's tip begins a bit further back, i.e. position ④ (as described in [1.4](1.4-articulators)).

-For the 'r' sound, the tongue's tip begins a bit further back.
+`l` 和 `r` 处于音节开头的时候,人们一般不会觉得困难,比如 *lot* `/lɑːt/` 或者 *rot* `/rɑːt/`……
-`l` 和 `r` 处于音节开头的时候,人们一般不会觉得困难,比如 *lot* 或者 *rot*……
-
-Pronouncing 'l' and 'r' at the beginning of syllables usually is of no difficulty at all, for example in words like 'lot' or 'rot'…
+Pronouncing `l` and `r` at the beginning of syllables usually is of no difficulty at all, for example in words like *lot*' `/lɑːt/` or *rot* `/rɑːt/`…
`l` 的困难总是来自于它们处在音节末尾的时候。
-The difficulty with 'l' often arises when it's at the end of a syllable.
+The difficulty with `l` often arises when it's at the end of a syllable.
-不妨尝试着先读一下 *milk* `/mɪlk/`…… 很多人读出来的实际上是 `/mjʊk/`……
+不妨尝试着先读一下 *milk* `/mɪlk/`…… 很多人读出来的实际上是 `/mjʊk/`……
-Feel free to give the word *milk* `/mɪlk/` a try... Many people actually pronounce it more like `/mjʊk/`...
+Feel free to give the word *milk* `/mɪlk/` a try... Many people actually pronounce it more like `/mjʊk/`...
`l` 在音节末尾的时候,有一个看不到的动作,舌尖会向前向上移动直至贴到龈脊。于是,音节末尾的 `l` 会掺杂着一个轻微的 `ə` 的元音音色。
@@ -41,24 +41,24 @@ Actually, it's not too challenging. With just a few minutes, it can be easily co
> * 现在反复说 `mɪəlk... mɪəlk...` 现在需要格外注意:为了 `m` 发声所以需要张开嘴唇,但,**此后嘴唇没有其他动作,否则会带着 `ʊ` 的音色**……
> * Now, keep saying `mɪəlk... mɪəlk...`. Again, pay special attention here: lips are opened to make the `m` sound, but after that, there should be no other lip movement, thus avoiding unnecessary `ʊ` sound.
-再用同样的方式练练 *girl* `/gəːl/`(常常会被误读成 `/gəʊ/`), *world* `/wəːld/`(常常会被误读成 `/wəʊd/`)。
+再用同样的方式练练 *girl* `/ɡɝːl/`(常常会被误读成 `/gəʊ/`), *world* `/wɝːld/`(常常会被误读成 `/wəʊd/`)。
-Practice pronouncing *girl* `/gəːl/` (often mispronounced as `/gəʊl/`) and *world* (often mispronounced as `/wəʊd/`) the same way.
+Practice pronouncing *girl* `/ɡɝːl/` (often mispronounced as `/gəʊl/`) and *world* `/wɝːld/` (often mispronounced as `/wəʊd/`) the same way.
以 `l` 处于音节末尾的常用词汇很多,读得时候要注意,要加上 `ə`,比如:
There are many common words where `l` ends the syllable. Be sure to include the `ə` sound when pronouncing them. For example:
-> *fail*, *file*, *sell*, *sale*, *tell*, *tale*, *trail*, *drill*...
+> *fail* `/feɪl/`, *file* `/faɪl/`, *sell* `/sel/`, *sale* `/seɪl/`, *tell* `/tel/`, *tale* `/teɪl/`, *trail* `/treɪl/`, *drill* `/drɪl/`...
-注意,`/ʌl/` 没有 `ə` 的加音,因为 `ʌ` 和 `ə` 原本就非常相近。比如,*ultimate* `/ˈʌltɪmət/`,或者 *result* `/rɪˈzəlt/`。另外,在自然语音中,`/iːl/` 要注意。比如, reveal 的确读做 `/rɪˈviːəl/`,有加音 `ə`,但,revealing,读作 `/rɪˈviːlɪŋ/`,没有加音 `ə`,可能是因为 `l` 被挪到后面和 `ɪŋ` 构成了第三个音节 `/lɪŋ/`……
+注意,`/ʌl/` 没有 `ə` 的加音,因为 `ʌ` 和 `ə` 原本就非常相近。比如,*ultimate* `/ˈʌltɪmət/`,或者 *result* `/rɪˈzəlt/`。另外,在自然语音中,`/iːl/` 要注意。比如, *reveal* 的确读做 `/rɪˈviːəl/`,有加音 `ə`,但,*revealing*,读作 `/rɪˈviːlɪŋ/`,没有加音 `ə`,可能是因为 `l` 被挪到后面和 `ɪŋ` 构成了第三个音节 `/lɪŋ/`……
-Note that `/ʌl/` doesn't have the schwa (`ə`) sound added, since `/ʌ/` and `ə` are already very similar. For instance, *ultimate* `/ˈəltəmət/`, or *result* `/rɪˈzəlt/`. Also, pay attention to `/iːl/` in natural speech. For example, while *reveal* is indeed pronounced as `/rɪˈviːəl/`, with the schwa sound, *revealing* is pronounced as `/rɪˈviːlɪŋ/`, without the schwa. This change might be due to the fact that the `l` sound has been moved to form a third syllable with `ɪŋ` as `/lɪŋ/`.
+Note that `/ʌl/` doesn't have the schwa (`ə`) sound added, since `/ʌ/` and `ə` are already very similar. For instance, *ultimate* `/ˈəltəmət/`, or *result* `/rɪˈzəlt/`. Also, pay attention to `/iːl/` in natural speech. For example, while *reveal* is indeed pronounced as `/rɪˈviːəl/`, with the schwa sound, *revealing* is pronounced as `/rɪˈviːlɪŋ/`, without the schwa. This change might be due to the fact that the `l` sound has been moved to form a third syllable with `ɪŋ` as `/lɪŋ/`.
-`l` 在语言学里有个专门的称呼,叫做**音节辅音**,就是因为它的发声动作如果完整的话,前面就会自然附加着一个轻微的元音 `ə` 的音色。比如,*little* `/ˈlɪtl̩/` —— `l` 下面多出的那一个点 `l̩` 的意思是说,这里的 `l̩` 是个**音节辅音**,相当于 `/ᵊl/`…… 当然,很多词典干脆就直接标注成了 `/ˈlɪtᵊl/` 或者 `/ˈlɪtəl/`
+`l` 在语言学里有个专门的称呼,叫做**音节辅音**,就是因为它的发声动作如果完整的话,前面就会自然附加着一个轻微的元音 `ə` 的音色。比如,*little* `/ˈlɪtl̩/` —— `l` 下面多出的那一个点 `l̩` 的意思是说,这里的 `l̩` 是个**音节辅音**,相当于 `/ᵊl/`…… 当然,很多词典干脆就直接标注成了 `/ˈlɪtᵊl/` 或者 `/ˈlɪtəl/`。CEPD 里标注的是 `/ˈlɪt̬əl/`,因为 `t` 夹在两个元音之间,变成了弹舌音 `t̬`。
-In linguistics, the letter `l` has a particular name - it's called a *syllabic consonant*. This is because when it is fully pronounced, a subtle vowel sound `ə` naturally attaches to the front of it. For example, in the word *little* `/ˈlɪtl̩/`, the dot under the `l` (`l̩`) indicates that this `l` is a *syllabic consonant*. It's equivalent to `/ᵊl/`. And many dictionaries simply denote it as `/ˈlɪtəl/`.
+In linguistics, the letter `l` has a particular name - it's called a *syllabic consonant*. This is because when it is fully pronounced, a subtle vowel sound `ə` naturally attaches to the front of it. For example, in the word *little* `/ˈlɪtl̩/`, the dot under the `l` (`l̩`) indicates that this `l` is a *syllabic consonant*. It's equivalent to `/ᵊl/`. And many dictionaries simply denote it as `/ˈlɪtəl/`. The pronunciation indicated in the CEPD is `/ˈlɪt̬əl/`, for the `t` is sandwiched between two vowels, which in this case becomes a flapped `t̬`.
-英文中另外一个**音节辅**音是 `m`。例如,*chasm* `/ˈkæzm̩/`,相当于 `/ˈkæzəm/`, *prism* `/ˈprɪzm̩/`,相当于 `/ˈprɪzəm/`。
+英文中另外一个**音节辅**音是 `m`。例如,*chasm* `/ˈkæzm̩/`,相当于 `/ˈkæzəm/`, *prism* `/ˈprɪzm̩/`,相当于 `/ˈprɪzəm/`。
-Another *syllabic consonant* in English is `m`. For example, *chasm* `/ˈkæzm̩/`,equivalent to `/ˈkæzəm/`, and *prism* `/ˈprɪzm̩/`,equivalent to `/ˈprɪzəm/`.
+Another *syllabic consonant* in English is `m`. For example, *chasm* `/ˈkæzm̩/`,equivalent to `/ˈkæzəm/`, and *prism* `/ˈprɪzm̩/`,equivalent to `/ˈprɪzəm/`.
diff --git a/1000-hours/sounds-of-american-english/2.2.15-wj.md b/1000-hours/sounds-of-american-english/2.2.15-wj.md
index 8ced083d..daa4f2d7 100644
--- a/1000-hours/sounds-of-american-english/2.2.15-wj.md
+++ b/1000-hours/sounds-of-american-english/2.2.15-wj.md
@@ -4,14 +4,14 @@
The sounds represented by `j` and `w` are semivowels in English.
-`j` 与后面的元音相连,相当于在那个元音前面加上了一个 `ɪ`,比如 *you* `/juː/`,读音上相当于是 `/iuː/`。
+`j` 与后面的元音相连,相当于在那个元音前面加上了一个 `ɪ`,比如 *you* `/juː/`,读音上相当于是 `/iuː/`。
-When `j` is connected to the following vowel, it is as if an `ɪ` sound is added in front of that vowel. For instance, the word *you* `/juː/`, pronounced the same as `/ɪuː/`.
+When `j` is connected to the following vowel, it is as if an `ɪ` sound is added in front of that vowel. For instance, the word *you* `/juː/`, pronounced the same as `/ɪuː/`.
-`w` 与后面的元音相连,相当于在那个元音前面加上了一个 `ʊ`,比如 *way* `juː`,读音上相当于是 `ʊeɪ`。
+`w` 与后面的元音相连,相当于在那个元音前面加上了一个 `ʊ`,比如 *way* `weɪ`,读音上相当于是 `ʊeɪ`。
-Similarly, when `w` is paired with a vowel, it's as if a `ʊ` sound precedes that vowel. Take the word *way* `/weɪ/`, pronounced the same as `/ʊeɪ/`.
+Similarly, when `w` is paired with a vowel, it's as if a `ʊ` sound precedes that vowel. Take the word *way* `/weɪ/`, pronounced the same as `/ʊeɪ/`.
-`w` 可以和另外的辅音结合作为音节开头:`sw`、`tw`、`dw`、`kw`、`skw`、`gw`…… 这其中最容易出错也最常的是 `kw`,尤其是 `kwɒ` 和 `kwɔː`,比如,*quart* `/kwɔːt/`,常常会被误读为 `/kɔːt/`(听起来和 *court* 同音);再比如,*quality* `/ˈkwɔːlɪti/`常常会被误读为 `/ˈkɔːlɪti/` —— 关键在于,`k` 的音之后有一个发出 `ʊ` 的嘴唇动作,否则 `kw` 就变成了 `k` —— 这个差异在母语使用者听起来异常地明显。
+`w` 可以和另外的辅音结合作为音节开头:`sw`、`tw`、`dw`、`kw`、`skw`、`gw`…… 这其中最容易出错也最常的是 `kw`,尤其是 `kwɒ` 和 `kwɔː`,比如,*quart* `/kwɔːrt/`,常常会被误读为 `/kɔːrt/`(听起来和 *court* `/kɔːrt/` 同音);再比如,*quality* `/ˈkwɔːlɪti/` 常常会被误读为 `/ˈkɔːlɪti/` —— 关键在于,`k` 的音之后有一个发出 `ʊ` 的嘴唇动作,否则 `kw` 就变成了 `k` —— 这个差异在母语使用者听起来异常地明显。
-The letter `w` can combine with other consonants to form the beginning of a syllable, such as `sw`, `tw`, `dw`, `kw`, `skw`, `gw`… The most common and often mispronounced combination is `kw`, specifically `kwɒ` and `kwɔː`. For example, the word *quart* is pronounced `/kwɔːt/`, but it is often misconstrued as `/kɔːt/`, which sounds like *court*, or *quality* `/ˈkwɔːlɪti/` as `/ˈkɔːlɪti/`. The key to getting this right is to make a lip movement for the `ʊ` sound after the `k` sound; otherwise, `kw` just becomes `k`. This distinction is incredibly noticeable to native speakers.
+The letter `w` can combine with other consonants to form the beginning of a syllable, such as `sw`, `tw`, `dw`, `kw`, `skw`, `gw`… The most common and often mispronounced combination is `kw`, specifically `kwɒ` and `kwɔː`. For example, the word *quart* is pronounced `/kwɔːrt/`, but it is often misconstrued as `/kɔːrt/`, which sounds like *court* `/kɔːrt/`, or *quality* `/ˈkwɔːlɪti/` as `/ˈkɔːlɪti/`. The key to getting this right is to make a lip movement for the `ʊ` sound after the `k` sound; otherwise, `kw` just becomes `k`. This distinction is incredibly noticeable to native speakers.
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 bbf4eb2e..38122ecb 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
@@ -2,7 +2,7 @@
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 —— 即,位置 ③(参见 [1.4](1.4-articulators))。
-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* position ③ (as described in [1.4](1.4-articulators)), not the *teeth*.
+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*, i.e. position ③ (as described in [1.4](1.4-articulators)), not the *teeth*.

@@ -28,9 +28,9 @@ The `t` sound may be the most complex in American English consonant pronunciatio
> * 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/`。如果你不知道喉塞音是什么样的,听听 *Uh-Oh!* —— `/ʌʔoʊ/`……
-> * Glottal Stop `ʔ` - The `t` before `n` might transform into a glottal stop, as in *utmost* `/ˈəʔˌmoʊst/`, *fitness* `/ˈfɪʔ·nəs/`, or *witness* `/ˈwɪʔ·nəs/`. If you don't understand what is a *glottal stop*, listen to the phrase, *Uh-Oh!* —— `/ʌʔoʊ/`...
-> * 省略音 `ᵗ` - `n` 之后的 `t` 可能会被省略掉,比如,*winter* `/ˈwɪnᵗ·ər/` —— 当然,若是读成 `/ˈwɪn·tər/`也没错……
-> * Optional `ᵗ` - The `t` following `n` might be omitted, as in *winter* `/ˈwɪnᵗ·ər/` - of course, `/ˈwɪn·tər/`is also correct.
+> * 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* `/ˈwɑːt̬ɚ/`;
+> * Flaping `t̬`: When `t` is situated between two vowels, it tends to be flaping `t̬`, sounding like `d`, as in water `/ˈwɑːt̬ɚ/`.
+> * 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* `/ˈwɪʔnəs/`。如果你不知道喉塞音是什么样的,听听 *Uh-Oh!* —— `/ʌʔoʊ/`……
+> * Glottal Stop `ʔ` - The `t` before `n` might transform into a glottal stop, as in *utmost* `/ˈəʔˌmoʊst/`, *fitness* `/ˈfɪʔnəs/`, or *witness* `/ˈwɪʔnəs/`. If you don't understand what is a *glottal stop*, listen to the phrase, *Uh-Oh!* —— `/ʌʔoʊ/`...
+> * 省略音 `ᵗ` - `n` 之后的 `t` 可能会被省略掉,比如,*winter* `/ˈwɪnᵗər/` —— 当然,若是读成 `/ˈwɪntər/`也没错……
+> * Optional `ᵗ` - The `t` following `n` might be omitted, as in *winter* `/ˈwɪnᵗər/` - of course, `/ˈwɪntər/`is also correct.
diff --git a/1000-hours/sounds-of-american-english/2.3.1-structure.md b/1000-hours/sounds-of-american-english/2.3.1-structure.md
index 3878abc7..5f73b552 100644
--- a/1000-hours/sounds-of-american-english/2.3.1-structure.md
+++ b/1000-hours/sounds-of-american-english/2.3.1-structure.md
@@ -2,29 +2,29 @@
**英文的词汇由至少一个音节构成**。英文中出现频率最高的几个词,*a/an*, *the*, *of*, *to*, *for*... 等等都是单音节词汇。有的词汇可能很长,由很多音节构成。在英文词典中能找到的最长词汇总计由 19 个音节,45 个字母构成:
-> *[Pneumonoultramicroscopicsilicovolcanoconiosis](https://en.wikipedia.org/wiki/Pneumonoultramicroscopicsilicovolcanoconiosis)*
+> *[Pneumonoultramicroscopicsilicovolcanoconiosis](https://en.wikipedia.org/wiki/Pneumonoultramicroscopicsilicovolcanoconiosis)*
>
> `/ˌnumənəʊˌəltrəˌmaɪkrəˌskɑpɪkˌsɪləkəʊvɑlˌkeɪnəʊˌkəʊniˈəʊsəs/`
-一个音节中,有且只有一个元音(被称为 nucleus),也是该音节的韵(rhyme)。音节以元音为核心,前后可有多达三个辅音构成的组合。
+一个音节中,有且只有一个元音(被称为 *nucleus*),也是该音节的韵(*rhyme*)。音节以元音为核心,前后可有多达三个辅音构成的组合。
In a syllable, there is *only* one vowel, known as the *nucleus*, which forms the *rhyme* of the syllable. This vowel is at the core of the syllable, and it can be surrounded by up to three consonants.
英文的音节构成大抵上有以下几种形式(其中,`c` 代表辅音,`v` 代表元音):
-> * `v`: *awe* `/ɔː/`
-> * `vc`: *add* `/æd/`
-> * `vcc`: *east* `/iːst/`
-> * `vccc`: *axed* `/ækst/`
-> * `cv`: *the* `/ðə/`
-> * `cvc`: *dog* `/dɔg/`
-> * `cvcc`: *task* `/tæsk/`
-> * `cvccc`: *text* `/tekst/`
-> * `ccv`: *flee* `/fliː/`
-> * `ccvc`: *speed* `/spiːd/`
-> * `ccvcc`: *thrust* `/θrʌst/`
-> * `ccvccc`: *flexed* `/flekst/`
-> * `cccv`: *spray* `/spreɪ/`
-> * `cccvc`: *spring* `/sprɪŋ/`
-> * `cccvcc`: *splashed* `/splæʃt/`
-> * `cccvccc`: *scrounged* `/skraʊnʤd/`
+> * `v` - *awe* `/ɑː/`
+> * `vc` - *add* `/æd/`
+> * `vcc` - *east* `/iːst/`
+> * `vccc` - *axed* `/ækst/`
+> * `cv` - *the* `/ðə/`
+> * `cvc` - *dog* `/dɑːɡ/`
+> * `cvcc` - *task* `/tæsk/`
+> * `cvccc` - *text* `/tekst/`
+> * `ccv` - *flee* `/fliː/`
+> * `ccvc` - *speed* `/spiːd/`
+> * `ccvcc` - *thrust* `/θrʌst/`
+> * `ccvccc` - *flexed* `/flekst/`
+> * `cccv` - *spray* `/spreɪ/`
+> * `cccvc` - *spring* `/sprɪŋ/`
+> * `cccvcc` - *splashed* `/splæʃt/`
+> * `cccvccc` - *scrounged* `/skraʊndʒd/`
diff --git a/1000-hours/sounds-of-american-english/2.3.2-stress.md b/1000-hours/sounds-of-american-english/2.3.2-stress.md
index ff437b6a..6dd5f041 100644
--- a/1000-hours/sounds-of-american-english/2.3.2-stress.md
+++ b/1000-hours/sounds-of-american-english/2.3.2-stress.md
@@ -4,26 +4,22 @@
When a word contains more than one syllable, one of those syllables may carry the *stress*, marked by `ˈ` in phonetic notation.
-有些时候,同样的词汇,因**重音位置**不同会产生**词义**或**词性**的变化。比如,*address*, `/ˈæˌdrɛs/` 是名词,“地址”;`/əˈdrɛs/` 是动词,“强调”;再比如,*record*,可以读作 `/ˈrɛkərd/` 或 `/rɪˈkɔrd/`,前者是名词,后者是动词。
+一个多音节词汇中,最多只有一个重音音节,但,可能还有另外一些音节是**次重音**(*secondary stress*),在音标中使用 `ˌ` 作为标记。比如,*serendipity* `/ˌserənˈdɪpət̬i/`,有一个**重音**和一个**次重音**。而 *[Pneumonoultramicroscopicsilicovolcanoconiosis](https://en.wikipedia.org/wiki/Pneumonoultramicroscopicsilicovolcanoconiosis)* 总计有 19 个音节,其中 7 个是次重音,唯一的重音是 `oʊ`……
-At times, the same word can bear different meanings or parts of speech due to the varying placement of the *stress*. For example, the word *address* when pronounced as `/ˈæˌdrɛs/` is a *noun*, meaning *place of residence*. However, when pronounced as `/əˈdrɛs/`, it is a *verb*, indicating to *highlight* or *bring attention to*. And *record* can be pronounced as `/ˈrɛkərd/` or `/rɪˈkɔːd/`. The former is a *noun*, while the latter is a *verb*.
-
-一个多音节词汇中,最多只有一个重音音节,但,可能还有另外一些音节是**次重音**(*secondary stress*),在音标中使用 `ˌ` 作为标记。比如,*serendipity* `/ˌserənˈdɪpɪti/`,有一个**重音**和一个**次重音**。而 *[Pneumonoultramicroscopicsilicovolcanoconiosis](https://en.wikipedia.org/wiki/Pneumonoultramicroscopicsilicovolcanoconiosis)* 总计有 19 个音节,其中 7 个是次重音,唯一的重音是 `oʊ`……
-
-In a multisyllabic word, there is *only one* syllable with *primary stress*. However, there may be other syllables with *secondary stress*, marked by `ˌ` in phonetic notation. For instance, *serendipity* `/ˌserənˈdɪpɪti/` has one primary stress and one secondary stress. On the other hand, the word *[Pneumonoultramicroscopicsilicovolcanoconiosis](https://en.wikipedia.org/wiki/Pneumonoultramicroscopicsilicovolcanoconiosis)* consists of *19* syllables in total, with *7* carrying secondary stress and the *sole* primary stress falling on `oʊ`.
+In a multisyllabic word, there is *only one* syllable with *primary stress*. However, there may be other syllables with *secondary stress*, marked by `ˌ` in phonetic notation. For instance, *serendipity* `/ˌserənˈdɪpət̬i/` has one primary stress and one secondary stress. On the other hand, the word *[Pneumonoultramicroscopicsilicovolcanoconiosis](https://en.wikipedia.org/wiki/Pneumonoultramicroscopicsilicovolcanoconiosis)* consists of *19* syllables in total, with *7* carrying secondary stress and the *sole* primary stress falling on `oʊ`.
在学习英文的时候,亚洲人特别需要注意的是,要从心理上纠正一个对应关系,“英文音节 - 字”,而不是 “英文单词 - 字” —— 亚洲文字,无论是中文、日文还是韩文,所有的字都是单音节构成。
What Asian learners of English must be especially mindful of is to mentally correct the correlation from "*English syllable - Asian Character*" instead of "English word - Asian Character". This is because all characters in Asian languages, whether Chinese, Japanese, or Korean, are composed of single syllables.
-*individual* `/ˌɪndəˈvɪdʒəwəl/` 这一个单词,总计 *5* 个音节,即,相当于 *5* 个汉字的长度…… 对比以下句子的音节数量:
+*individual* `/ˌɪndəˈvɪdʒuəl/` 这一个单词,总计 *5* 个音节,即,相当于 *5* 个汉字的长度…… 对比以下句子的音节数量:
-The word *individual* `/ˌɪndəˈvɪdʒəwəl/` has a total of *5* syllables, which is equivalent to the length of *5* Chinese characters. Consider the comparison between the number of syllables in the following sentences
+The word *individual* `/ˌɪndəˈvɪdʒuəl/` has a total of *5* syllables, which is equivalent to the length of *5* Chinese characters. Consider the comparison between the number of syllables in the following sentences
> * 人们看法各不相同。`[Rénmen kànfǎ gè bù xiāngtóng]` —— 总计 *8* 个字,*8* 个音节。
> * 人们看法各不相同。`[Rénmen kànfǎ gè bù xiāngtóng]` - *8 characters in Chinese, 8 syllables*.
-> * People's opinions vary from individual to individual. `/ˈpipəlz əˈpɪnjənz ˈvɛri frəm ˌɪndəˈvɪdʒəwəl tə ˌɪndəˈvɪdʒəwəl/` —— 总计 *7* 个单词,*19* 个音节。
-> * People's opinions vary from individual to individual. `/ˈpipəlz əˈpɪnjənz ˈvɛri frəm ˌɪndəˈvɪdʒəwəl tə ˌɪndəˈvɪdʒəwəl/` - *7* words in English, *19* syllables.
+> * People's opinions vary from individual to individual. `/ˈpiːpəlz əˈpɪnjənz ˈveri frɑːm ˌɪndəˈvɪdʒuəl tuː ˌɪndəˈvɪdʒuəl/` —— 总计 *7* 个单词,*19* 个音节。
+> * People's opinions vary from individual to individual. `/ˈpiːpəlz əˈpɪnjənz ˈveri frɑːm ˌɪndəˈvɪdʒuəl tuː ˌɪndəˈvɪdʒuəl/` - *7* words in English, *19* syllables.
这个对应关系的纠正很重要,因为这个对应关系在最底层影响连贯声音的理解方式。
@@ -49,9 +45,9 @@ However, the word *individual*, which is composed of 5 syllables, would likely b
In English, in addition to primary stress, secondary stress, and unstressed syllables, we also have weakly pronounced syllables, like the schwa (`ə`) sound that occurs when syllables are reduced.
-细细体会 *individual* `/ˌɪndəˈvɪdʒəwəl/` 这个词,如果每个音节都清晰地用同样的强度读出来的话,应该是 `/ɪn-dɪ-vɪ-dʒju-əl/`…… 这里面,第 2 个音节 `/dɪ/`里的元音 `ɪ` 被弱化为 `ə`;另外,第 4 个音节 `/dʒju/` 里的元音 `ju` 也被弱化成了 `ə`,但保留了 `u` 的音色;而处于音节末尾的 `l`,之前自带着轻微的 `ə`,于是连成了很轻的 `wᵊl`……
+细细体会 *individual* `/ˌɪndəˈvɪdʒuəl/` 这个词,如果每个音节都清晰地用同样的强度读出来的话,应该是 `/ɪn-dɪ-vɪ-dʒju-əl/`…… 这里面,第 2 个音节 `/dɪ/`里的元音 `ɪ` 被弱化为 `ə`;另外,第 4 个音节 `/dʒu/` 里的元音 `ju` 也被弱化成了 `ə`,但保留了 `u` 的音色;而处于音节末尾的 `l`,之前自带着轻微的 `ə`,于是连成了很轻的 `wᵊl`……
-Let's dig deep into the word *individual*, for example, it's pronounced as `/ˌɪndəˈvɪdʒəwəl/`. If each syllable was placed equal stress, it would sound something like /ɪn-dɪ-vɪ-dʒju-əl/... Within this pronunciation, the vowel `ɪ` in the second syllable `/dɪ/` is reduced to the schwa sound, `ə`; likewise, the vowel `ju` in the fourth syllable `/dʒju/` is also reduced to `ə`, but retains the coloration of `u`. The `l` at the end of the syllable, which originally carries a slight `ə` sound, thus becomes a very light `wᵊl`...
+Let's dig deep into the word *individual*, for example, it's pronounced as `/ˌɪndəˈvɪdʒuəl/`. If each syllable was placed equal stress, it would sound something like /ɪn-dɪ-vɪ-dʒju-əl/... Within this pronunciation, the vowel `ɪ` in the second syllable `/dɪ/` is reduced to the schwa sound, `ə`; likewise, the vowel `ju` in the fourth syllable `/dʒu/` is also reduced to `ə`, but retains the coloration of `u`. The `l` at the end of the syllable, which originally carries a slight `ə` sound, thus becomes a very light `wᵊl`...

@@ -59,17 +55,26 @@ Let's dig deep into the word *individual*, for example, it's pronounced as `/ˌ
In English, vowel sounds can vary in length. It's interesting to note that when a syllable with a short vowel sound is *stressed*, it's naturally pronounced a bit longer. For example, the first stressed syllable in words like *city* or *silly*, `/ˈsɪ/` may be extended due to the drawn-out `s` sound. Similarly, the word *big* in the sentence "*Thanks, I owe you a big one*," may be elongated because the pitch of the syllable `bɪg` is raised or simply because the short vowel `ɪ` is stretched out.
-注意,同样一个单词,重音放在不同的音节,可能会改变其词性,比如以下常见词汇:
+有些时候,同样的词汇,因**重音位置**不同会产生**词义**或**词性**的变化。比如,*address*, `/ˈædres/` 是名词,“地址”;`/əˈdres/` 是动词,“强调”;再比如,*record*,可以读作 `/ˈrekɚd/` 或 `/rɪˈkɔːrd/`,前者是名词,后者是动词。
+
+At times, the same word can bear different meanings or parts of speech due to the varying placement of the *stress*. For example, the word *address* when pronounced as `/ˈæˌdres/` is a *noun*, meaning *place of residence*. However, when pronounced as `/əˈdres/`, it is a *verb*, indicating to *highlight* or *bring attention to*. And *record* can be pronounced as `/ˈrekɚd/` or `/rɪˈkɔːrd/`. The former is a *noun*, while the latter is a *verb*.
+
+类似的还有很多,比如以下常见词汇[^1]:
Note, the same word, when pronounced with stress on different syllables, can change its part of speech. Consider the following common words as examples:
-| Noun | Verb |
-| ---- | ---- |
-| 'conflict| con'flict |
-| 'record| re'cord |
-| 'digest| di'gest |
-| 'convert| con'vert |
-| 'permit| per'mit |
-| 'subject| sub'ject |
-| 'rebel| re'bel |
-| 'conduct| con'duct |
+| Noun | Verb |
+| ----------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------- |
+| 'conduct `/ˈkɑːndʌkt/` | con'duct `/kənˈdʌkt/` |
+| 'conflict `/ˈkɑːnflɪkt/` | con'flict `/kənˈflɪkt/` |
+| 'convert `/ˈkɑːnvɝːt/` | con'vert `/kənˈvɝːt/` |
+| 'digest `/ˈdaɪdʒest/` | di'gest `/daɪˈdʒest/` |
+| 'permit `/ˈpɝːmɪt/` | per'mit `/pɚˈmɪt/` |
+| 'rebel `/ˈrebəl/` | re'bel `/rɪˈbel/` |
+| 'subject `/ˈsʌbdʒekt/` | sub'ject `/səbˈdʒekt/` |
+
+在随后的章节里我们会涉及到重音音节的另外一个重点 —— 音调(*tone*,[2.5.2](2.5.2-tone))。
+
+In the upcoming sections, we'll be covering another important aspect of stressed syllables — tone ([2.5.2](2.5.2-tone)).
+
+[^1]: Sound files in this page mostly come from [CEPD online edition](https://dictionary.cambridge.org/pronunciation/).
diff --git a/1000-hours/sounds-of-american-english/2.4.1-stop.md b/1000-hours/sounds-of-american-english/2.4.1-stop.md
index 6543c393..1dd05987 100644
--- a/1000-hours/sounds-of-american-english/2.4.1-stop.md
+++ b/1000-hours/sounds-of-american-english/2.4.1-stop.md
@@ -20,9 +20,9 @@ Take the word *absolutely* `/ˌæbsəˈluːtli/` for instance. To *stress* the `
Another frequent stop is more subtle. It's there, but you can't see or hear it.
-比如,在 *hotdog* 这个词里,`t` 的声音是听不到的,但,它的舌尖动作却是**完整**的,所以,能够听到的不是 `/ˈhɑtˌdɔg/`,也不是 `/ˈhɑˌdɔg/`,而是 `/ˈhɑ·ˌdɔg/` —— 这里的 `·` 表示因 `t` 的舌尖动作完整却没有发出任何声音而产生的**停顿**。你可以再试试 network `/ˈnɛtˌwərk/` 这个词 —— 这里面的 `t` 也是同样的机制。
+比如,在 *hotdog* 这个词里,`t` 的声音是听不到的,但,它的舌尖动作却是**完整**的,所以,能够听到的不是 `/ˈhɑtˌdɔg/`,也不是 `/ˈhɑˌdɔg/`,而是 `/ˈhɑˌdɔg/` —— 这里的 `` 表示因 `t` 的舌尖动作完整却没有发出任何声音而产生的**停顿**。你可以再试试 network `/ˈnɛtˌwərk/` 这个词 —— 这里面的 `t` 也是同样的机制。
-Consider the word *hotdog*. You can't hear the 't,' but the articulation is complete. So instead of hearing '/ˈhɑtˌdɔg/' or '/ˈhɑˌdɔg/,' you hear '/ˈhɑ·ˌdɔg/' – the '·' represents a stop created by the 't' sound's complete articulation without any audible output. Try the same with 'network' – the 't' applies the same principle.
+Consider the word *hotdog*. You can't hear the 't,' but the articulation is complete. So instead of hearing '/ˈhɑtˌdɔg/' or '/ˈhɑˌdɔg/,' you hear '/ˈhɑˌdɔg/' – the '' represents a stop created by the 't' sound's complete articulation without any audible output. Try the same with 'network' – the 't' applies the same principle.
这类**停顿**(*stop*),也叫**塞音**,最常见的有以下几种:
@@ -34,8 +34,8 @@ There are several types of *stops* in English:
> * **Dental stop**: `θ`, `ð` - As in *I wish the *pa**th*** to success was smoother*, the final `θ` in `/pæθ/` is a dental stop.
> * 龈塞音: `t`、`d` —— He *trie**d*** to discuss his idea with his boss. 第二个单词 `/traɪd/` 末尾的 `d` 就是一个龈塞音。
> * **Alveolar stop**: `t`, `d` - As in *He *trie**d*** to discuss his idea with his boss*, where the final `d` in `/traɪd/` is an alveolar stop.
-> * 喉塞音:`k`, `g`, `t` —— IPA 里用 `ʔ`标注。 I don't *thin**k** that* is true. 第三个单词 *think* 末尾的 `k` 就是一个喉塞音,`/θɪŋʔ ðæt/`。 *uh-oh* `/ɑʔoʊ/` 是另外一个例子…… `t` 也有可能用这个喉塞音,比如,*utmost* `/ˈʌʔˌmoʊst/`,或者 `/ˈneʔ·wɝːk/`。
-> * **Glottal stop**: `k`, `g`, `t` - In the International Phonetic Alphabet (IPA), the glottal stop is represented by the symbol `ʔ`. Take the sentence *I don't think that's true* for example. At the end of the word *think*, there's a glottal stop, as in `/θɪŋʔ ðæt/`. Another example is the word *uh-oh* `/ɑʔoʊ/`. Also, `t` can sometimes be replaced with a glottal stop, as in *utmost* `/ˈʌʔˌmoʊst/` or *network* `/ˈneʔ·wɝːk/`.
+> * 喉塞音:`k`, `g`, `t` —— IPA 里用 `ʔ`标注。 I don't *thin**k** that* is true. 第三个单词 *think* 末尾的 `k` 就是一个喉塞音,`/θɪŋʔ ðæt/`。 *uh-oh* `/ɑʔoʊ/` 是另外一个例子…… `t` 也有可能用这个喉塞音,比如,*utmost* `/ˈʌʔˌmoʊst/`,或者 `/ˈneʔwɝːk/`。
+> * **Glottal stop**: `k`, `g`, `t` - In the International Phonetic Alphabet (IPA), the glottal stop is represented by the symbol `ʔ`. Take the sentence *I don't think that's true* for example. At the end of the word *think*, there's a glottal stop, as in `/θɪŋʔ ðæt/`. Another example is the word *uh-oh* `/ɑʔoʊ/`. Also, `t` can sometimes be replaced with a glottal stop, as in *utmost* `/ˈʌʔˌmoʊst/` or *network* `/ˈneʔwɝːk/`.
不管是哪一种,大多都是因为之前的一个辅音**虽然并未发出声音却动作完整**造成的。
diff --git a/1000-hours/sounds-of-american-english/draft.md b/1000-hours/sounds-of-american-english/draft.md
index 172598d0..4b1ae863 100644
--- a/1000-hours/sounds-of-american-english/draft.md
+++ b/1000-hours/sounds-of-american-english/draft.md
@@ -1,8 +1,8 @@
# Drafts
-辅音 `t` 在美式英语中有个弹舌音变体,`t̬`,例如,*cutting* `/ˈkʌt̬·ɪŋ/`。
+辅音 `t` 在美式英语中有个弹舌音变体,`t̬`,例如,*cutting* `/ˈkʌt̬ɪŋ/`。
-The consonant `t` has a flapping variant, `t̬`, as in the word *cutting*, pronounced `/ˈkʌt̬·ɪŋ/`.
+The consonant `t` has a flapping variant, `t̬`, as in the word *cutting*, pronounced `/ˈkʌt̬ɪŋ/`.
辅音 `l` 是音节辅音([2.2.14](2.2.14-lr)),有时会在之前自然附带一个 `ə` 音,可能被标注为 `əl`、`ᵊl`(上标式 `ə`) 或者 `l̩`(注意 `l` 下的那根小竖线)。
@@ -12,13 +12,13 @@ The consonant `l` is a syllabic consonant ([2.2.14](2.2.14-lr)), which sometimes
In the 6 basic vowels, `ə` and `ɪ` have relatively more variants, or *allophones*:
* `ɪ`:
- * 除了长元音版本 `iː` 之外,还有一个半长版本 `i`,例如 *happy* `/ˈhæp·i/`[^1];
- * In addition to the long vowel version `i`ː, there's also a semi-long version `i`, as in *happy* `/ˈhæp·i/`.
+ * 除了长元音版本 `iː` 之外,还有一个半长版本 `i`,例如 *happy* `/ˈhæpi/`[^1];
+ * In addition to the long vowel version `i`ː, there's also a semi-long version `i`, as in *happy* `/ˈhæpi/`.
* `ə`:
* 长元音版本 `əː` 在 CEPD[^2] 中被标注为 `ɜː`,例如 *bird* `/bɜːd/` (UK)
* The long vowel version `əː` is annotated as `ɜː` in the CEPD[^2], like in *bird* `/bɜːd/` (UK).
- * 儿化的短元音 `ə` 被标注为 `ɚ`,例如 *mother* `/ˈmʌð·ɚ/`;
- * The rhotacized short vowel `ə` is annotated as `ɚ`, as in *mother* pronounced `/ˈmʌð·ɚ/`.
+ * 儿化的短元音 `ə` 被标注为 `ɚ`,例如 *mother* `/ˈmʌðɚ/`;
+ * The rhotacized short vowel `ə` is annotated as `ɚ`, as in *mother* pronounced `/ˈmʌðɚ/`.
* 儿化的长元音 `əː` 被标注为 `ɝː` 例如 *bird* `/bɝːd/` (US)
* The rhotacized long vowel `əː` is annotated as `ɝː`, like in *bird* pronounced `/bɝːd/` (US).
@@ -30,7 +30,7 @@ The sounds represented by `eə`, `ɪə`, and `ʊə` in British English are rhota
Furthermore, in British English, there are two triphthongs: `aɪə` as in *fire* pronounced `/faɪə/` and `aʊə` as in *hour* pronounced `/aʊə/`. In American English, these two triphthongs simplify into more apparent rhotacized diphthongs, `aɪə` → `aɪr`, for example, *fire* pronounced `/faɪr/`, and *hour* pronounced `/aʊr/`.
-[^1]: The middle dot `·` in `/ˈhæp·i/` is an annotation of syllable division. A dot `.` is used in CEPD, but for clearer html rendering, we use a raised one here.
+[^1]: The middle dot `` in `/ˈhæpi/` is an annotation of syllable division. A dot `.` is used in CEPD, but for clearer html rendering, we use a raised one here.
[^2]: CEPD, Cambridge English Pronunciation Dictionary, https://dictionary.cambridge.org/help/phonetics.html.
@@ -62,13 +62,9 @@ Here are some key points to take note of when it comes to phonetic representatio
> - `t` 的弹舌音用 `t̬` 标注。
> - The flapping `t` sound in American English is represented by `t̬`.
-
-
-
-
### `ʌ`
-*but* `/bʌt/`, *chum* `/tʃʌm/`, *cut* `/kʌt/`, *drum* `/drʌm/`, *duck* `/dʌk/`, *fun* `/fʌn/`, *gun* `/ɡʌn/`, *hut* `/hʌt/`, *jump* `/dʒʌmp/`, *luck* `/lʌk/`, *mud* `/mʌd/`, *nut* `/nʌt/`, *pup* `/pʌp/`, *run* `/rʌn/`, *shut* `/ʃʌt/`, *sun* `/sʌn/`, *thug* `/θʌɡ/`, *thus* `/ðʌs/`, *truck* `/trʌk/`, *tut* `/tʌt/`, *vulgar* `/ˈvʌl·ɡɚ/`, *won* `/wʌn/`, *yum* `/jʌm/`
+*but* `/bʌt/`, *chum* `/tʃʌm/`, *cut* `/kʌt/`, *drum* `/drʌm/`, *duck* `/dʌk/`, *fun* `/fʌn/`, *gun* `/ɡʌn/`, *hut* `/hʌt/`, *jump* `/dʒʌmp/`, *luck* `/lʌk/`, *mud* `/mʌd/`, *nut* `/nʌt/`, *pup* `/pʌp/`, *run* `/rʌn/`, *shut* `/ʃʌt/`, *sun* `/sʌn/`, *thug* `/θʌɡ/`, *thus* `/ðʌs/`, *truck* `/trʌk/`, *tut* `/tʌt/`, *vulgar* `/ˈvʌlɡɚ/`, *won* `/wʌn/`, *yum* `/jʌm/`
### `e`
@@ -77,19 +73,19 @@ Here are some key points to take note of when it comes to phonetic representatio
### `ə`
-*ago* `/əˈɡoʊ/`, *button* `/ˈbʌt̬·ən/`, *develop* `/dɪˈvel·əp/`, *dramatic* `/drəˈmæt̬·ɪk/`, *expression* `/ɪkˈspreʃ·ən/`, *onion* `/ˈʌn·jən/`, *realize* `/ˈriː·ə·laɪz/`, *standard* `/ˈstæn·dɚd/`, *system* `/ˈsɪs·təm/`, *telegram* `/ˈtel·ə·ɡræm/`
+*ago* `/əˈɡoʊ/`, *button* `/ˈbʌt̬ən/`, *develop* `/dɪˈveləp/`, *dramatic* `/drəˈmæt̬ɪk/`, *expression* `/ɪkˈspreʃən/`, *onion* `/ˈʌnjən/`, *realize* `/ˈriːəlaɪz/`, *standard* `/ˈstændɚd/`, *system* `/ˈsɪstəm/`, *telegram* `/ˈteləɡræm/`
注意:没有儿化的 `ə` 在美式英语中,被称作 *schwa*,非重读央元音 —— 即,只出现在非重读音节中。
### `ɚ`
-*danger* `/ˈdeɪn·dʒɚ/`, *freezer* `/ˈfriː·zɚ/`, *harder* `/hɑːrdɚ/`, *larger* `/lɑːrdʒɚ/`, *paper* `/ˈpeɪ·pɚ/`, *server* `/ˈsɝː·vɚ/`, *teacher* `/ˈtiː·tʃɚ/`, *water* `/ˈwɑː·t̬ɚ/`, *worker* `/ˈwɝː·kɚ/`
+*danger* `/ˈdeɪndʒɚ/`, *freezer* `/ˈfriːzɚ/`, *harder* `/hɑːrdɚ/`, *larger* `/lɑːrdʒɚ/`, *paper* `/ˈpeɪpɚ/`, *server* `/ˈsɝːvɚ/`, *teacher* `/ˈtiːtʃɚ/`, *water* `/ˈwɑːt̬ɚ/`, *worker* `/ˈwɝːkɚ/`
注意:儿化的短元音 `ɚ` 只出现在非重读音节中。
### `ɪ`
-*bit* `/bɪt/`, *chip* `/tʃɪp/`, *did* `/dɪd/`, *drill* `/drɪl/`, *gig* `/ɡɪɡ/`, *gin* `/dʒɪn/`, *his* `/hɪz/`, *if* `/ɪf/`, *kick* `/kɪk/`, *lip* `/lɪp/`, *milk* `/mɪlk/`, *nil* `/nɪl/`, *pick* `/pɪk/`, *rip* `/rɪp/`, *ship* `/ʃɪp/`, *sit* `/sɪt/`, *thick* `/θɪk/`, *this* `/ðɪs/`, *tip* `/tɪp/`, *trick* `/trɪk/`, *vivid* `/ˈvɪv·ɪd/`, *wit* `/wɪ/`, *zip* `/zɪp/`
+*bit* `/bɪt/`, *chip* `/tʃɪp/`, *did* `/dɪd/`, *drill* `/drɪl/`, *gig* `/ɡɪɡ/`, *gin* `/dʒɪn/`, *his* `/hɪz/`, *if* `/ɪf/`, *kick* `/kɪk/`, *lip* `/lɪp/`, *milk* `/mɪlk/`, *nil* `/nɪl/`, *pick* `/pɪk/`, *rip* `/rɪp/`, *ship* `/ʃɪp/`, *sit* `/sɪt/`, *thick* `/θɪk/`, *this* `/ðɪs/`, *tip* `/tɪp/`, *trick* `/trɪk/`, *vivid* `/ˈvɪvɪd/`, *wit* `/wɪ/`, *zip* `/zɪp/`
### `ʊ`
diff --git a/1000-hours/why.md b/1000-hours/why.md
index 9fd8a124..0e645793 100644
--- a/1000-hours/why.md
+++ b/1000-hours/why.md
@@ -52,4 +52,4 @@
显然,我们有必要天天**健脑**,正如我们实际上有必要天天**健身**一样 —— 只不过人群中主动健身的占比非常低,且事实上越来越低。更为显然却竟然更多被忽视的是,**健脑**比**健身**更重要,哪怕不健身也要健脑,不是吗?当然,归根结底,这是你自己的选择,人生的一切,终归都是自己选的。
-值得注意的是,早期建立的健身习惯,往往并不是孩子自身的选择,而是父母的主动选择,因为那时他们尚不具备完善的**主动选择能力**。**健身习惯越早建立越好**。越是早期,习惯养成越是容易,与此同时,越是早期养成的习惯越是难以撼动。同样的道理,**健脑习惯也是越早建立越好**,可它和健身习惯一样,不大可能是孩子自身的主动选择,只能靠父母的主动。在这一点上,很显然,为人父母,越早觉醒越好。
\ No newline at end of file
+值得注意的是,早期建立的健身习惯,往往并不是孩子自身的选择,而是父母的主动选择,因为那时他们尚不具备完善的**主动选择能力**。**健身习惯越早建立越好**。越是早期,习惯养成越是容易,与此同时,越是早期养成的习惯越是难以撼动。同样的道理,**健脑习惯也是越早建立越好**,可它和健身习惯一样,不大可能是孩子自身的主动选择,只能靠父母的主动。在这一点上,很显然,为人父母,越早觉醒越好。