syllable hyphen character

例句：

1. 1. The word "apple" has four syllables.
   这个单词“apple”有四个音节。
2. 2.In music, a syllable is the smallest unit of sound that can be pronounced.
   在音乐中，一个音节是能被发音的最小的声音单位。
3. 3.The syllable structure of a language affects how words are pronounced and understood.
   一个语言的音节结构会影响单词的发音和理解。