如果单吃早餐并不能保证减肥，那为什么肥胖和不吃早餐之间存在联系？

If breakfast alone isn't a guarantee of weight loss, why is there a link between obesity and breakfast-skipping?

youdao

如果商店倒闭，这张保修单可能就没有价值了。

The guarantee could be worthless if the shop goes out of business.

《柯林斯英汉双解大词典》

如果保修单有限制，这些条款可让你有权换货或退款。

If the warranty is limited, the terms may entitle you to a replacement or refund.

《柯林斯英汉双解大词典》

Like, I guess just sitting and watching The Simpsons, it's entertaining because they make jokes and they make us laugh.

我觉得如果单看《辛普森一家》,确实很有乐趣，因为它很搞笑，令人捧腹。

耶鲁公开课 - 公正课程节选

And, if you look carefully, it tries to give the sense of a one electron system.

如果你仔细的观察的话，它试图给人一种单电子系统的感觉。

麻省理工公开课 - 固态化学导论课程节选

So this program, if you run it based on intuition or little cheat sheets in front of you, what is this program ultimately going to do for me?

所以这个程序，如果你按照你的直觉,或你们面前的备忘单来执行它，这个程序最终会为我做什么？

哈佛公开课 - 计算机科学课程节选