| |||
jealousy; take a good, sharp lookout for; watch out (for) | |||
precaution (praecautio) | |||
keep a good, sharp lookout for | |||
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guard |
戒备 : 19 phrases in 7 subjects |
Communications | 1 |
Electronics | 1 |
Engineering geology | 1 |
General | 11 |
Space | 2 |
Technology | 1 |
United Nations | 2 |