短语 | be on the lookout(或keep a lookout for) |
释义 | be on the lookout(或keep a lookout for) be alert to (danger or trouble) 警觉地注意(危险, 困难): he told them to be on the lookout for dangerous gas. 他告诉他们小心有害气体。 ■ keep searching for (something that is wanted) 一直寻找: we kept a sharp lookout for animals and saw several waterbuck. 我们仔仔细细地寻找动物, 见到几只非洲大羚羊。 |
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