单词：on guard
on guard的用法和样例：
例句
- He reported the murder to the police on duty.他将凶杀事件告知值班警察。
- There was no fireman on when the fire broke out.火灾发生时没有消防队员在值班。
- Keep a vigilant eye on the imperialist jackals.对帝国主义的走狗要保持警戒。
- Put none but Americans on guard tonight.今夜只让美国人担任警戒。
词汇搭配
- on guard值班
- be on one's guard戒备着
- put someone on guard劝某人警惕,让某人提...
- on one's guard警惕
- put someone on his guard劝某人警惕,让某人提...
- lie on one's guard提防
- stand on one's guard警戒
- cautious谨慎的
- circumspect细心的
- on your guard警戒(警惕
- on one's guard警惕
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今天我们要学的词是off-guard。 Off-guard, 是没有提防，缺乏警惕的意思。以色列炮轰加沙后，联合国在加沙地区的一位高级官员说， We were caught off-guard by the operation, 这次行动让我们丝毫没有防备
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今天我们要学的词是off-guard。 Off-guard, 是没有提防，缺乏警惕的意思。以色列炮轰加沙后，联合国在加沙地区的一位高级官员说， We were caught off-guard by the operation, 这次行动让我们丝毫没有防备
英语单词荟萃