If you rest, you rust.

如果你休息，你就要生锈。

youdao

Better if you rest.

最好去休息了。

youdao

And thus, the saying goes, "If you rest, you rust."

所以有一种说法：“如果你休息了，你就生锈了”。

youdao

Or if you are trying to rest your voice but it keeps getting worse.

VOA: special.2009.09.02

Right. If you look at the rest of that code, gee, it looks a lot like what I had elsewhere.

好了如果你看看剩下的代码，天呐，看上去就像我在别的地方写过的。

麻省理工公开课 - 计算机科学及编程导论课程节选

Those of you more comfortable, rest assured we'll start filling in some gaps before long if you're already familiar with this.

那些程度比较好的同学，我们马上来讲一下以前遗漏的问题,如果你们已经熟悉这门课，那会觉得那容易接受。

哈佛公开课 - 计算机科学课程节选

"Celine's voice is like a fine-tuned instrument, and if you let it rest, when you play it again, it'll sound even better, " Mottola said.

CNN: The 'ultimate diva'

If you think the rest of the world is interested in hearing about your collection of Ottoman porcelain or why "The Catcher in the Rye" is the great American novel (yawn) you really do need an ego the size of a house.

CNN: Shortcuts: Writing a blog

"Keep in mind, they are coming off 14-hour trips and if you don't let them rest - you'll kill them, " he said.

BBC: Maradona denies threat to resign