题目内容
In English, there are five closing diphthongs and _______ centring diphthongs. （在空格处填入英文数字,而且要求用纯小写英文字母。）
查看答案
搜索结果不匹配？点我反馈
更多问题
Diphthongs are sounds which consist of a movement or glide from one ________ to another.（要求用纯小写英文字母填写答案。）
/eɪ/ is a closing diphthong and /ɪə/ is a centring diphthong.
Our mouth shape makes changes when we pronounce diphthongs.
The first vowel of a diphthong is as long as the second vowel.
微信支付 
支付宝支付