You know, you don't have to pretend to be okay for us.你不用在我们面前强颜欢笑

pretend to假装

He got in by pretend to be a telephone engineer.

他假装成电话工程师进来的。

His ploy is to pretend to be ill.

他的手法就是装病。

Yeah, if this was the act you had to pull off to get out of there,对，如果你是想借此机会出院

pull off努力实现；赢得

He decided to pull off the plan in the new term.

他决定在新学期里努力完成这个计划。

Our team was able to pull off a victory.

我们的队伍得胜。

It was either him or you?不是你死就是他亡

either...or...不是...就是...

Tom is going to buy either a guitar or a piano.

汤母不是要买一把吉他就是要买一架钢琴。

You are either with me or against me.

你不是支持我就是反对我。

I just gave up.我就放弃了

give up放弃；抛弃

He will give up smoking for good and all.

他再也不吸烟了。

In any case he can not give up it.

他无论如何不会放弃它。