n.預(yù)防；預(yù)防措施

You should take an umbrella just as a precaution. 你該帶把傘，有備無患。

I took the precaution of locking everything in the safe. 我把一切東西都鎖在保險箱里以防萬一。

All this wake the local government to the need for safety precaution. 所有這些使當(dāng)?shù)卣J(rèn)識到必須采取安全預(yù)防措施。

adj.預(yù)先警戒的；預(yù)防的；留心的