guard against; take precautions against; premunition
短语和例子
防备火灾 take precautions against fire; 防备敌人突然袭击 be prepared for surprise attacks by the enemy; 防备孩子们受冻 protect the children from catching cold; 把羊圈关好, 防备羊群跑掉。 close the gate of the pen properly to prevent the sheep from getting away