1、I will engage for his behavior should you decide to employ him.
如果你能決定雇用他, 那么我可以擔(dān)保他的行為。

2、I can engage for his honesty.
我保證他為人誠(chéng)實(shí)。

3、I'll engage for John's behaviour should you decide to employ him.
如果你決定聘用約翰， 我愿為他的行為擔(dān)保。

engage for翻譯