on the alert

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  • na.警惕
  • Web提防;警戒;处于戒备状态
na.
1.
警惕,提防

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Definition:
Category:AllAll,OralOral,WrittenWritten,TitleTitle,TechnicalTechnical
Source:AllAll,DictionaryDictionary,WebWeb
Difficulty:AllAll,EasyEasy,MiddleMiddle,HardHard
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