如果它们存在，做一个去点。

If they exist, make a point of going.

youdao

屏幕组件布局（如果它们存在的话）

The screen components layout, if they exist

youdao

我想自动从当地media_root所有静态文件服务，如果它们存在，只有回退到CDN的URL，如果他们不这样做。

I would like to automatically serve all static files from the local MEDIA_ROOT, if they exist, and only fallback to the CDN URL if they do not.

youdao

So if I get rid of these arrows, there's no heat flowing because they're in thermal equilibrium, then I can't have an arrow here.

所以如果我擦去这些箭头，没有热流存在,因为它们处于热平衡，那么这里也不能存在一个箭头。

麻省理工公开课 - 热力学与动力学课程节选

- If you eat these raw, which they do in many places around the world, if you eat a bitter one, you could, in fact, get enough cyanide to kill you.

如果你生吃它们的话，它们在世界上的很多地方都存在，如果你吃了一个苦的根，可能，实际上，它所含的氰化物的量足以令你死亡。

麻省理工公开课 - 化学原理课程节选

The point is just if I can at least imagine the one thing without the other, they must in fact be two separate things.

我们要讨论的是,至少如果我可以想象,某物独立于另一物存在,那么它们就肯定彼此不同

耶鲁公开课 - 死亡课程节选