If I get this report finished I'll knock off early.

如果我完成这个报告就会早点儿下班。

《柯林斯英汉双解大词典》

If I don't get this finished in time, I'll be in trouble.

我如不按时把这完成就要倒霉了。

《牛津词典》

If this offer is genuine, I will gladly accept it.

如果这份帮助是真诚的，我将愉快地接受它。

《柯林斯英汉双解大词典》

I added that if Mister Wheeler could tell me anything about this Leonidas W.Smiley, I would feel a great responsibility to him.

VOA: special.2009.08.29

If I do this and this but then I also put some other quotes inside, what's the computer potentially gonna think?

如果我双引号里面再套双引号,那电脑会怎么想呢？

哈佛公开课 - 计算机科学课程节选

Two: check to see if this is the answer, if this is the thing I'm looking for.

是否是我们要找的元素，接着，如果不是。

麻省理工公开课 - 计算机科学及编程导论课程节选

"So the producer doesn't have to make a decision, 'if I join this cooperative I can't see the doctor I have been seeing for a couple of decades, '" Oemichen said.

CNN: Farmers say co-ops work for feed, seed and health care

You kind of think, oh, if I just have this or if I just have that or if they had gotten here a little bit sooner.

NPR: Doctor Describes Scene in Darfur

Maybe, I thought, if I ordered this wireless Kindle 2 I would be pulled into a world of compulsive, demonic book consumption, like Pippin staring at the stone of Orthanc.

NEWYORKER: A New Page