本帖最后由 billzhao 于 2012-5-19 12:12 编辑 8 B7 {# r8 H; O8 m, l# Q. a; o& [8 e4 I: Q& v
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。; t6 { g- F$ r; D3 F8 X/ {
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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. % D- i8 F6 l9 N6 R+ |* s/ n. ~ & g/ t: E# W8 a- N# Z% C9 o6 W6 g ) X d9 L( q- T. U" h4 t