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on the alert

提防；警戒著；随时准备著

1、警惕着

on the alert 处于戒备状态; 警惕着; 密切注意着; 随时准备着..

2、警惕

On The Alert(警惕地), 此释义来源于网络辞典。

3、警戒着

报警，使警惕，使认识到，使意识到 n 警戒，戒备,警报 on the alert 警戒着，随时准备着，密切注意着 Alike a 同样的，相像的 vt 一样地，相似地，同样程度地 ..

put on the alert处于戒备状态

be on the alert在警惕中的;注意;提防;警戒

Keep on the alert提防着点

Battle Fortress on the alert战斗要塞警戒之中

be on the alert for警戒;戒备

to be on the alert警惕

be always on the alert一种军事思想;常备

Always Be On The Alert常备不懈

not be on the alert没有防备

adj.watchful and prepared for action

同义词：on the job(p)

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