alertness

更新日期：2026-08-14

词语	alertness
释义	alertness n.alert的变形 alert[ə'lə:t] adj. [一般作表语] 警惕的，警觉的，警戒的；留心的，留神的，注意的 (思想)敏锐的，敏捷的；(行动)迅速的，(动作)灵敏的，灵活的，机灵的，活泼的 n. (空袭)警报；警戒警报期间，警戒期间；警戒状态，戒备状态；报警信号 vt. 使警觉；使警戒，使警惕，向…发出警报，命令警戒： The radio alerted coastal residents to prepare for the storm. 无线电台向沿海居民发出警报，准备对付风暴。 to alert the government to the danger of inflation 使政府警惕通货膨胀的危险使(部队)处于待命状态，通知(部队、船只等)待命；通知： The troops were alerted. 部队处于待命状态。使充分意识到；使认识到： I must alert him to the need to solve the problem. 我必须使他认识到解决这问题的必要性。近义词: intelligent.watchful 短语: on (the) alert 警惕着，警戒着，警觉着；提防着，防备着；密切注意着；随时准备着 put (或 place) on (the) alert (军队)处于戒备状态
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词语

alertness

释义

alertness

n.alert的变形

alert[ə'lə:t]

adj.
- [一般作表语]
- 警惕的，警觉的，警戒的；留心的，留神的，注意的
- (思想)敏锐的，敏捷的；(行动)迅速的，(动作)灵敏的，灵活的，机灵的，活泼的
n.
- (空袭)警报；警戒
- 警报期间，警戒期间；警戒状态，戒备状态；报警信号
vt.
- 使警觉；使警戒，使警惕，向…发出警报，命令警戒：
  The radio alerted coastal residents to prepare for the storm.
  无线电台向沿海居民发出警报，准备对付风暴。
  to alert the government to the danger of inflation
  使政府警惕通货膨胀的危险
- 使(部队)处于待命状态，通知(部队、船只等)待命；通知：
  The troops were alerted.
  部队处于待命状态。
- 使充分意识到；使认识到：
  I must alert him to the need to solve the problem.
  我必须使他认识到解决这问题的必要性。
近义词:
intelligent.watchful
短语:
- on (the) alert 警惕着，警戒着，警觉着；提防着，防备着；密切注意着；随时准备着
- put (或 place) on (the) alert (军队)处于戒备状态

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