| 词汇 | on guard |
| 释义 | Idiom on (one's) guard Theme: CAUTION cautious; watchful.Be on guard. There are pickpockets around here.You had better be on your guard. Idiom on guardon (your) guard to be careful and aware because a situation might be dangerous.I resent this attitude that you can't trust anybody, that you always have to be on your guard. on (one's) guardEspecially careful or vigilant; prepared for danger or surprises. He's got a lot of tricky moves, so be on your guard! Those trails can be a bit treacherous to climb. I just hope she's on her guard. *on (one's) guard (against someone or something)alert against someone or something. (*Typically: be ~; keep ~; remain ~; stay ~.) Try to stay on guard against pickpockets. I am always on my guard. Be on guard when you go into the city. on (one's) guard Alert and watchful; cautious. |
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