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alertness

US 
UK [ə'lɜːtnəs]
  • n.机智;敏捷性;机敏
  • Web警觉;机警;警戒
n.
1.
机智;敏捷性
2.
机敏

Sample Sentence

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