本帖最后由 billzhao 于 2012-5-19 12:12 编辑 % k# A1 v8 Y @; _6 P3 F6 {: n7 r z3 Q- \) _8 t& |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。 ) F- s ^4 O- ` 3 j2 h4 L2 b0 v6 U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. 2 t ?: E* l! c$ l3 Q: g $ F- A% o' N6 ]* v/ f2 v3 d! y3 B- f) l+ M" c& F) z, x