Although the causes of cancer are being uncovered, we do not yet have any practical way to prevent it.

尽管癌症的病因正被揭开，但我们还没有任何预防它的有效的方法。

《柯林斯英汉双解大词典》

youdao

It was fast, and I had to run to the garage to prevent it from hitting the new door.

它开得很快，我不得不跑到车库去，以免它撞到新开的门。

youdao

Senators can threaten a bill with unlimited debate unless sixty senators vote to prevent it.

VOA: special.2010.01.23

It wasn't caused by the Fed's sudden tightening against inflation. It was different it was this recession was not understood not anticipated; the Fed came in late to cut interest rates to try to prevent it from being worse because it just didn't seem to have any reason for happening.

它不是由于美联储对通货膨胀的,突然紧缩政策造成的，它不同之处在于,这个经济衰退没有被理解，没有事先准备好；,美联储试图阻止它恶化而,降低利率为时已晚，因为,它似乎看起来没有任何理由发生。

耶鲁公开课 - 金融市场课程节选

Maybe it won't now that we have better plans to prevent things like that, but suppose it did happen.

也许现在不会，我们有更好的方案,阻止这种事情发生，假设它真的发生了。

耶鲁公开课 - 金融市场课程节选

Google has built some safeguards into the system to try to prevent it from misfiring.

FORBES: Will You Use Google's Death Manager To Let Loved Ones Read Your Email When You Die?

So that by itself is a reason to work hard to prevent it from happening.

WHITEHOUSE: Press Briefing

It has an effect on us, so we want to prevent it from going any further.

CNN: U.S. shares blame for Mexico drug violence, Clinton says