大获成功(用于祝愿演员演出成功)。

It means to wish someone good luck.

它意思是祝福别人有好的运气。

The stage manager told his actors to do their best and break a leg.

舞台监督总是告诉他的演员们要努力演出，并祝他们演出成功。

It's the first night of your stage play so go break a leg!

这是你的舞台剧的首演，祝演出成功!

Good luck on your performance. Hope you break a leg!

祝你演出好运。希望你演出成功!