front vowel

例句：

1. 1. The teacher pointed out the front vowel of the word "cat" to help the students pronounce it correctly.
   老师指出了单词“cat”的前元音，帮助学生正确地发音。
2. 2. In English, the front vowel sounds like "ah" when it comes before a consonant.
   在英语中，前元音听起来像是“ah”，当它出现在辅音之前。
3. 3. The singer sang the song with a front vowel in the chorus line, making it easier for the audience to sing along.
   歌手在合唱线中使用了前元音，使观众更容易跟着唱。