diff --git a/new-edition-drafts/英文语音简明教程.md b/new-edition-drafts/英文语音简明教程.md
index ea90101c..75d7b85d 100644
--- a/new-edition-drafts/英文语音简明教程.md
+++ b/new-edition-drafts/英文语音简明教程.md
@@ -206,7 +206,7 @@
 怎么做呢？仔细听以下 3 个  `ɑ` 音的不同变体，随后多揣摩多尝试（音频来自 [Wikipedia](https://en.wikipedia.org/wiki/Vowel)）就会了：
 
 * 气流共鸣位置靠前：
-<audio controls><source src="audios/ɑ-01-PR-open_front_unrounded_vowel.ogg.mp3" type="audio/mpeg"> Your browser does not support the audio element./source></audio>
+<audio controls><source src="audios/ɑ-01-PR-open_front_unrounded_vowel.ogg.mp3" type="audio/mpeg"> Your browser does not support the audio element.</source></audio>
 * 气流共鸣位置居中：
 <audio controls> <source src="audios/ɑ-02-Open_central_unrounded_vowel.ogg.mp3" type="audio/mpeg">Your browser does not support the audio element.</source></audio>
 * 气流共鸣位置靠后：
@@ -789,7 +789,7 @@ D.J 音标经过多次改版，最终被剑桥接手，于 1997 发布了第 15
 
 > *Yet, it is a fact of life that an unlettered peasant is considered ignorant.*
 >
-> <audio controls><source src="audios/yet-it-is-a-fact-of-life.mp3" type="audio/mpeg">Your browser does not support the audio element./source></audio>   
+> <audio controls><source src="audios/yet-it-is-a-fact-of-life.mp3" type="audio/mpeg">Your browser does not support the audio element.</source></audio>   
 >
 >  以下是这段音频的 *Waveform*（波谱）和 *Pitch Contour*（音高变化）：
 >
@@ -878,13 +878,13 @@ D.J 音标经过多次改版，最终被剑桥接手，于 1997 发布了第 15
 
 > *Marianna made the marmalade...*
 >
-> 1. <audio controls><source src="audios/marm1.wav" type="audio/mpeg">Your browser does not support the audio element./source></audio>
+> 1. <audio controls><source src="audios/marm1.wav" type="audio/mpeg">Your browser does not support the audio element.</source></audio>
 >
-> 2. <audio controls><source src="audios/marm2.wav" type="audio/mpeg">Your browser does not support the audio element./source></audio>
+> 2. <audio controls><source src="audios/marm2.wav" type="audio/mpeg">Your browser does not support the audio element.</source></audio>
 >
-> 3. <audio controls><source src="audios/marm3.wav" type="audio/mpeg">Your browser does not support the audio element./source></audio>
+> 3. <audio controls><source src="audios/marm3.wav" type="audio/mpeg">Your browser does not support the audio element.</source></audio>
 >
-> 4. <audio controls><source src="audios/marm4.wav" type="audio/mpeg">Your browser does not support the audio element./source></audio>
+> 4. <audio controls><source src="audios/marm4.wav" type="audio/mpeg">Your browser does not support the audio element.</source></audio>
 
 拿第一个版本为例，请参照以下图示：
 
@@ -896,7 +896,7 @@ D.J 音标经过多次改版，最终被剑桥接手，于 1997 发布了第 15
 
 > *Community* service is an important component of education here at our university. We encourage all students to volunteer for at least one *community* activity before they graduate.
 
-<audio controls><source src="audios/toefl-sampe-01.mp3" type="audio/mpeg">Your browser does not support the audio element./source></audio>
+<audio controls><source src="audios/toefl-sampe-01.mp3" type="audio/mpeg">Your browser does not support the audio element.</source></audio>
 
 这段录音中所有被强读的词汇在以下的文本中被加重标记（而没有标记的，就是被弱读的）：
 
@@ -993,7 +993,7 @@ D.J 音标经过多次改版，最终被剑桥接手，于 1997 发布了第 15
 
 > Community service is an important component of education *here at our uni*·**ver**·*sity*. We encourage all students to volunteer for at least one community activity before they graduate.
 
-<audio controls><source src="audios/toefl-sampe-01.mp3" type="audio/mpeg">Your browser does not support the audio element./source></audio>
+<audio controls><source src="audios/toefl-sampe-01.mp3" type="audio/mpeg">Your browser does not support the audio element.</source></audio>
 
 请仔细注意这一串音节：*here at our uni*·**ver**·*sity*... 它们原本应该被读作  `ˈhiə æt ɑʊə ˌjunəˈvərsəti`…… 可你听到的是什么呢？`ˈhiə·(æ)t̬ɑ(ʊə)ˌjunə·ˈvərsəti`（括号里的音素省略到几乎听不清）……