本帖最后由 billzhao 于 2012-5-19 12:12 编辑 ) k! u9 }+ q* d8 @& x/ I% o( V" `9 h+ q& D
好像南方或者北方有的地方s sh不分,下面视频应该有所帮助。 * P, A) S0 W% j5 P7 u7 L. z6 b % @7 x8 a: x6 }8 ~0 O3 B) p很喜欢老师的自信,她说 It's simple. It's easy. Once you watch this video, you get it, and you'll never make the mistake again. People will understand you, and your life will be fantastic. : ] Z: I8 `6 H1 e; {, @6 T* a
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