be on one's guard; be cautious or wary about; be alert to同义词:mind
例句
Beware your hat, lest it should be blown away.当心你的帽子别被吹走。
I was told to beware lest I injure him.有人关照我,要我小心别伤害他。
Beware of what you do with this dangerous substance.你处理这些危险品时,可要当心。
详细解释
be.ware v.(动词)be.wared,be.war.ing,be.wares v.tr.(及物动词)To be on guard against; be cautious of:当心;小心:例句:.Beware the ides of March.(Shakespeare).小心三月十五日.(莎士比亚) v.intr.(不及物动词)To be cautious; exert caution:小心;尽量小心:例句:We had to beware of the icy patches on the road. Beware of the dog.我们要小心路面上的冰;当心狗 来源:Middle English ben war 中古英语 ben warben [to be] * see beben [成为] *参见 bewar [on one`s guard] * see ware 2war [值班] *参见 ware2