Be on your guard.

你要提防着点儿。

Sure.

当然。

Chances are ten to one that we'll have a economic recession.

我们十有八九会陷入经济衰退。

Please bear with me.

请耐心等一会儿。

Stop complaining.

别抱怨了。

That's really the limit.

真叫人忍无可忍。