| 单词 | on one's guard |
| 释义 | on one's guard 警惕，提防 【军事】站岗，放哨，值班 以上来源于：《21世纪大英汉词典》 on one's guardphr.① 警戒著；守望详细释义 phr.警惕 Be on your guard, I conjure you. 千万要警惕呀，我恳求你。 He's always on his guard against saying the wrong thing. 他总是谨防说错话。英英释义adj.vigilant |
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