你太天真了。You are too naive.

别再笑话我了。Don't be so sarcastic.

　　防不胜防。Can't be too careful.

　　不知羞耻。You know no shame.

　　惨不忍睹。Not a pretty sight.

　　包在我身上。Leave it up to me.

　　别转移话题!Don't sidetrack!