也许不透明的奶瓶在被打开后，并不能很好地防止细菌在牛奶中生长。

Maybe opaque bottles aren't as good at keeping bacteria from growing in milk after the bottle has been opened for something.

youdao

我们应该尽力防止校园暴力事件的发生，因为如果不能保证学生的人身安全，会有越来越多的学生辍学。

We should make every effort to prevent violence happening at school, for more and more students would drop out of school if their personal safety couldn't be guaranteed.

youdao

这虽然不能完全防止疾病，但能减少它的严重性。

This does not prevent disease altogether, but can reduce its severity.

youdao