在言语中不重读的英语元音大部分被弱化成无形的中元音。

Most English vowel sounds which are not given weight in speech become reduced to a rather formless central vowel.

youdao

在言语中不重读的英语元音大部分被弱化成无形的中元音。

Most English vowel sounds which are not given weight in speech become reduced to a rather formless central vowel.

youdao