We hope to prevent anything unpleasant from happening.

我们希望防止任何不愉快的事发生。

《牛津词典》

How do you prevent this from happening?

如何防止这种情况发生?

youdao

In order to prevent such tragedy from happening again, we students should avoid buying food from the stores or stalls out of the school.

为了防止这种悲剧再次发生，我们作为学生应尽量避免从学校外的商店或摊位购买食物。

youdao

To prevent that from happening, American Secretary of State John Hay proposed what became known as the "Open Door" policy.

VOA: special.2010.07.29

They have been working on improving their methods and they're trying to create divisions within their organizations that prevent the moral hazard from happening.

他们已经对技术进行改进,并且他们正尝试,在机构中划分部门,以便防范道德风险的发生

耶鲁公开课 - 金融市场课程节选

to try to keep those things from happening again.

来试图防止这些事情再次发生。

美国的会计丑闻 - SpeakingMax英语口语达人

Patients and their families can take steps to keep harmful medical errors from happening.

FORBES: Tips For Preventing Medication Errors

Have some sort of alert, block it, do something that keeps the wrong thing from happening.

FORBES: Briefly, things I hate

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

WHITEHOUSE: Press Briefing