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1000-hours/sounds-of-american-english/2.4.1-stop.md

@@ -45,9 +45,26 @@ Regardless of the type, most of such stops occur when a previous consonant is fu
 
 Apart from *stops*, a sentence can be divided into several *meaning groups*, each separated by an obvious *pause*.
 
-比如，*I don't think I've got any milk left*<span class="speak-word-inline" data-audio-us-male="/audios/us/sentence-don't-think-i-alloy.mp3" data-audio-us-female="/audios/us/sentence-don't-think-i-nova.mp3"></span>. 这句话显然会被分割为至少两个**意群**：*I don't think* | *I've got any milk left*. 因为两个意群之间有**暂停**，所以 *think* `/θɪŋk/` 末尾的 `k` 不会与后面的只有一个元音的单音节词汇 *I* `/aɪ/` 连在一起。另外，请注意这里的 *milk* —— 这个词你专门练过 —— 它末尾的 `k` 是个**喉塞音**……
+先听听这段话的录音[^1]：
 
-For example, the sentence "*I don't think I've got any milk left.*"<span class="speak-word-inline" data-audio-us-male="/audios/us/sentence-don't-think-i-alloy.mp3" data-audio-us-female="/audios/us/sentence-don't-think-i-nova.mp3"></span> would likely be split into two meaning groups: "*I don't think*" and "*I've got any milk left.*" Because there's a *pause* between these groups, the `k` at the end of *think* doesn't connect with the following monosyllabic word *I*. Additionally, note the word *milk* - a word you've intensely practiced before - at the end, where there's a *glottal stop* with the `k` sound.
+Check out the recording of this stentence:
+
+> *Yet, it is a fact of life that an unlettered peasant is considered ignorant.* <span class="speak-word-inline" data-audio-us-male="/audios/us/yet-it-is-a-fact.mp3"></span>
+>
+> 以下是这段音频的 *Waveform*（波谱）和 *Pitch Contour*（音高变化）：
+>
+> Here are the Waveform and Pitch Contour for this audio clip:
+>
+> ![yet-it-is-a-fact-of-life](/images/yet-it-is-a-fact-of-life.png)
+>
+> * *Pitch Contour* 截图来自学习辅助工具 [Enjoy](https://github.com/xiaolai/everyone-can-use-english)。
+> * The screenshot of the Pitch Contour is from the learning aid App [Enjoy](https://github.com/xiaolai/everyone-can-use-english).
+
+在 Waveform 里我们可以清楚地看到，这句话里有两处明显的停顿（用 `|` 标注）：
+
+In the Waveform, we can clearly see two significant pauses (marked with `|`) in this sentence:
+
+> *Yet, | it is a fact of life | that an unlettered peasant is considered ignorant.* <span class="speak-word-inline" data-audio-us-male="/audios/us/yet-it-is-a-fact.mp3"></span>
 
 **停顿**（*stop*）与**暂停**（*pause*）可以用**可否换气**进行区分：
 
@@ -57,3 +74,5 @@ The distinction between *stop* and *pause* can be clarified by whether or not on
 > * A *stop* usually occurs between syllables where you don't need to, and often can't, take a breath;
 > * 意群之间的**暂停**（*pause*）是可以换气的 —— 当然若非必要也可以不换气；
 > * A *pause* typically happens between meaning groups, where you have the opportunity to take a breath - although it's not always necessary to do so.
+
+[^1]: This audio clip is extracted from the Audible edition of *Knowledge and Decisions* by Thomas Sowell.