【英语启蒙】大家一起学发音：[u]该怎么发 2016-02-26 | 分类：英语常识 | 浏览:1999 Video Text: The [u] sound. This is very related to the [] as in butter, but t
![【英语启蒙】大家一起学发音：[u]该怎么发](/public/static/common/images/not_adv.jpg)
