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vigilant

US [ˈvɪdʒɪlənt]
UK ['vɪdʒɪlənt]
  • adj.警觉的;警惕的;警戒的;谨慎
  • Web警醒的;警惕着的
vigilant
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adj.
1.
警觉的;警惕的;警戒的;谨慎very careful to notice any signs of danger or trouble
A pilot must remain vigilant at all times.
飞行员必须随时保持警惕。

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