alertness

英 [əˈlɜːtnəs]

美 [əˈlɜːrtnəs]

n.  警觉，清醒，机警

BNC.19835 / COCA.18261

柯林斯词典

• ADJ-GRADED 警觉的；警惕的；留神的；机敏的
  If you arealert, you are paying full attention to things around you and are able to deal with anything that might happen.
  1. We all have to stay alert...
     我们大家都必须保持警惕。
  2. He had been spotted by an alert neighbour.
     一个警觉的邻居发现了他。
• ADJ-GRADED 充分意识到…的;完全感觉到…的
  If you arealert tosomething, you are fully aware of it.
  1. The bank is alert to the danger.
     银行充分意识到了危险。
• N-COUNT 警戒（状态）；戒备（状态）
  Analertis a situation in which people prepare themselves for something dangerous that might happen soon.
  1. Due to a security alert, this train will not be stopping at Oxford Circus.
     由于安全戒备的原因，该次列车在“牛津街口广场”站将不停留。
• VERB 向…报警；使警觉；使警惕；使注意
  If youalertsomeonetoa situation, especially a dangerous or unpleasant situation, you tell them about it.
  1. He wanted to alert people to the activities of the group...
     他想提醒人们小心该团体的活动。
  2. I was hoping he'd alert the police.
     我当时希望他会报警。
• See also:red alert
• PHRASE 处于警戒状态;保持戒备
  If soldiers or police areon alert, they are ready to deal with anything that may happen.
  1. Soldiers and police have been put on alert.
     士兵和警方都已进入警戒状态。
• PHRASE 准备就绪；防备着
  If you areon the alert forsomething, you are ready to deal with it if it happens.
  1. They want to be on the alert for similar buying opportunities.
     他们希望随时掌握有关类似购买机会的信息。

英英释义

noun

• lively attentiveness
  Synonym:sharp-sightednesson the qui vive
• the process of paying close and continuous attention
  1. wakefulness, watchfulness, and bellicosity make a good hunter
  2. vigilance is especially susceptible to fatigue
  Synonym:watchfulnesswakefulnessvigilance
• a state of readiness to respond
  1. alerting was indicated by the desynchronization of the EEG
  Synonym:alerting

双语例句

• The Arabian also developed the high spirit and alertness needed in a horse used for raiding and war.
  阿拉伯，还研制出了高昂的斗志和用于袭击和马需要的警觉性战争。
• All these activities can increase alertness and make it difficult to fall asleep.
  所有这些活动会提高你的灵敏度，让睡觉变得很困难。
• He drinks a lot of tea to maintain his mental alertness.
  他喝很多茶保持神智清楚。
• Showing mental alertness and calculation and resourcefulness.
  表现出思想上的机敏、深思熟虑和足智多谋。
• While the picture is developing I'm now going to test your real alertness.
  趁着洗照片的功夫，下面才是真正测试你们机警性的时候了。
• And so the first thing I want to do is to test your alertness.
  所以首先我来，测测各位的机警性。
• The other half of the brain stays awake at a low level of alertness.
  另一半大脑在低水平警戒状态下保持清醒。
• Alertness, calmness, courage: he could see them all in the youngster's face.
  机警，镇定，胆量，都摆出在这年青人的脸上。
• Our Gini Coefficient has been reached to the international alertness line level.
  我国基尼系数已超过了国际警戒线水平。
• Ginseng was reported to have increased energy and mental alertness.
  人参可以增进体力和提高精神敏捷性。