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1000-hours/sounds-of-american-english/2.4.3-cc.md

@@ -1,10 +1,10 @@
-# 3.4.3. 辅音 + 辅音（Consonant + Consonant）
+# 2.4.3. 辅音 + 辅音（Consonant + Consonant）
 
 “**辅音 + 辅音**” 的组合需要注意的地方相对较多。
 
 The combination of "consonant + consonant" often requires more attention.
 
-## 3.4.3.1 省音（elision）
+## 2.4.3.1 省音（elision）
 
 “**辅音 + 辅音**” 的组合，常常会造成前一个辅音虽然发声器官（*articulator*）动作完整但并不发声的情况，于是会出现一个既 “看不见” 也 “听不到” 的**停顿**（*stop*，[3.4.1](3.4.1-stop)），之前举过单词内存在这种情况的例子，*hotdog* 和 *network*，再比如，*hard-nosed*, *partner*……
 
@@ -18,7 +18,7 @@ Some refer to this phenomenon as *elision*. While it's true that the sound is dr
 
 Within a meaning group, it's common for a word to end with a consonant and the following word to begin with one, resulting in *elision*.
 
-## 3.4.3.2. 叠音（geminates）
+## 2.4.3.2. 叠音（geminates）
 
 上一个音节末尾的辅音和下一个音节开头的辅音相同的时候，这一对相同的辅音被称作**叠音**（*geminates*）。在连贯的自然语音中，这两个辅音就只发声一次 —— 但听起来的时候，有可能感受到前一个辅音存在造成细微停顿。它从机制上来看，其实和**省音**（[3.4.3.1](3.4.3-cc#_3-4-3-1-省音-elision)）一样。其实哪怕相邻的两个辅音相似的时候，也会发生同样的现象。
 
@@ -28,7 +28,7 @@ When the same consonant ends one syllable and begins the next, this pair of iden
 
 For instance, *at that time* is not pronounced as `/ət ðæt taɪm/`, but as `/ə·ðætaɪm/`. Here, the first `t` is elided because it is followed by another consonant, so you can't hear it. However, the expected pause is still there, represented by `·`. Then, the second `t` and the third `t` form a geminate, and are vocalized only once. Similarly, *a bad day* is not pronounced as `/ə bæd deɪ/`, but as `/ə bæ deɪ/`; *with this*, is not `/wɪθ ðɪs/`，but `/wɪ·ðɪs/`.
 
-## 3.4.3.3. 同化（assimilation）
+## 2.4.3.3. 同化（assimilation）
 
 同化（*assimilation*）主要有两种情况：
 
@@ -62,7 +62,7 @@ However, it's important to note that these are possibilities, not certainties. N
 > * *increase*, `/ˌɪnˈkris/` → `/ˌɪŋˈkris/`
 > * *brown gate*, `/braʊn geɪt/` → `/braʊŋ geɪt/`
 
-## 3.4.3.4. 击穿（dropping）
+## 2.4.3.4. 击穿（dropping）
 
 “辅音 + 辅音” 的组合中，如果第二个辅音是 `h` 的话，它常常被击穿（*dropping*），因为 `h` 原本就是很轻的音，发音时声带并不震动，所以总是自然而然地被前后发音相对更为响亮的声音所掩盖。
 
@@ -80,7 +80,7 @@ Many Americans have a unique habit with the `t` sound, especially when it follow
 
 In addition, the `ð` sound can also be dropped, primarily in the common word *them*. For example, *let them* `/lɛt ðəm/` might become `/lɛt-əm/`. When the `ð` is dropped, the `t` ends up sandwiched between two vowels and turns into the voiced flap `t̬`. So, what you say or hear becomes `/lɛt̬əm/`. Therefore, in natural speech, *let him* and *let them* sound identical and only context can determine whether it's *him* or *them*.
 
-## 3.4.3.5 其它（others）
+## 2.4.3.5 其它（others）
 
 值得一提的是，`m/n` + `f/v` 的情况。词汇之内我们看过 *comfort* 和 *conversation* 的例子。这种情况在意群之内也经常会遇到，比如，*stem from*, 只能读成 `/sten frəm/`……