| 释义 |
be on guard [英] [bi: ɒn ɡɑ:d] [美] [bi ɑn gɑrd] [短语] 警惕;站岗 词频排名 14399/55435 学习人数 40 难度等级 5/10 认知比例 53.33% 例句 Two soldiers must be on guard all night. 必须有两个士兵彻夜站岗。 "When we go shopping, we should be on guard against pickpockets." 我们购物时,应该警惕扒手。 Be on guard when somebody flatters you. 有人奉承你时一定要警惕。 助记 联想 be on/off gard
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