prevent from基本解释
阻止， 防止

网络释义
1. 预防,防止
2. 妨碍

例句：
Lock or unlock your phone to prevent from unwanted checks .
锁定或解锁手机，以防止不必要的检查。

How to prevent from producing new froth ?
如何防止新泡沫的产生？

It could moisten steadily and prevent from the problem causing sun-baked .
具稳定滋润功效，并防止日晒所引起的肌肤问题。

How prevent from that the intestinal tuberculosis is infected .
怎样防止被传染肠结核。