Alberg opened his mouth, as if to protest. But he thought better of it.

阿尔伯格张口像是要抗议，但转念一想就放弃了。

《柯林斯英汉双解大词典》

I was planning to ask you in for a brandy, but if you want to take a rain check, that's fine.

我本想请你来喝杯白兰地，但如果你想改日再来，也行。

《柯林斯英汉双解大词典》

The service charge is a rip-off, but I'm willing to pay if I'm guaranteed a seat.

这项服务费是宰人的，但要是能保证我有座位我就愿意付钱。

《柯林斯英汉双解大词典》

But if you want to visit the newly opened Statue of Liberty, you must do it within the next two years.

VOA: special.2009.06.29

From moment to moment, language changes, but if we're to understand it as language we have to honor its simultaneity.

语言无时无刻不在变化，但是如果我们要理解它,我们就必须尊重它的同时性。

耶鲁公开课 - 文学理论导论课程节选

but if you explain it to your friend that you or she should not have or should have done something,

如果你想要向你的朋友解释，或者她应该做某事的时候，

I should have 课堂 - SpeakingMax英语口语达人

As for Schwarzenegger, he delivers his regulation one-liners not as if they just occurred to him but as if they had to be mined from far below and hauled up to the pithead.

NEWYORKER: The Evil That Men Do

The British have an empathy and an emotional attachment to it but if you talk to consumers they don't know when they last bought anything of any value there.

BBC: What is the point of Woolworths?

If you want to become rich, move to a cluster but if you want to become the richest, move on.

ECONOMIST: The Star Wars rule of clusters