所属栏目:英语语音
The closing diphthongs have the characteristics that they all end with a glidetoward a closer vowel. Because the second part of the diphthong is weak,they oftendo not reach a position that could be called close. The important thing is that a glidefrom a r ......(本文共 17515 字 , 6 张图) [阅读本文] >>