Update 2.5-prosody.md

歌曲是有韵律的......

The prosody of speech......

中英文隔行分段

1000-hours/sounds-of-american-english/2.5-prosody.md

@@ -5,6 +5,7 @@
 Learning to speak is, in many ways, a simpler version of learning to sing. This comparison is useful because it allows us to perceive everyday, fluid speech as a string of syllables, not just a group of words (a single word can have more than one syllable). After all, natural speech is fundamentally based on syllables, not words.
 
 歌曲是有韵律的，自然语音其实也一模一样…… 好听的歌声和好听的语音，简单说，总计需要注意以下几个方面：
+
 The prosody of speech is like the rhythm of a song. To make our speech or singing appealing to the ear, there are a few key elements we need to pay attention to. These are:
 
 > **高低**、**起伏**、**轻重**、**缓急**…… 以及，很多人并不重视的**停顿**（[2.4.1](2.4.1-stop)）。
@@ -26,4 +27,4 @@ Therefore, to speak well, to speak fluently, even to speak beautifully, we need
 
 虽然**把每个音素读准读对**看起来更基础，但实际上更重要的是每个音节的**韵律**，即，该**音节**的**高低、起伏、轻重、缓急**，比这个还重要的，是很多人没想到的**音节间**可能的**停顿**。
 
-While it might seem more basic to pronounce each phoneme correctly, what's actually more crucial is the prosody of each syllable, including the *pitch*, *variation*, *stress*, and *rhythm* of the syllable, and what's even more important is the potential *stop* or *pause* between syllables, which is something many people overlook.
+While it might seem more basic to pronounce each phoneme correctly, what's actually more crucial is the prosody of each syllable, including the *pitch*, *variation*, *stress*, and *rhythm* of the syllable, and what's even more important is the potential *stop* or *pause* between syllables, which is something many people overlook.