Ms ABC:

　　Hello! I've learned that "Break a leg!"means "祝贺!", but I wonder when and how to use it. And, is there any other modes to express the meaning"祝贺”？

　　Tks/B RGDS

　　Lizzy Liu

　　Answer:

　　Dear Lizzy Liu,

　　You can use "congratulation", and "Break a leg!" is the spoken language.

　　Yours abc