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

• These and other instinctive'I's can be very acute at times and they are often mistaken for consciousness because of their intuitive nature and alertness.
  本能的诸我有时非常敏锐，经常被误以为是意识，那是因为它们的直觉天性和警觉。
• 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。
• Because naps help purging negative emotions, increase alertness, and enhance your abilities to learn.
  因为午休有助于消除负面情绪，提高灵敏性，并增强学习能力。
• Its implementation will build on three self-reinforcing elements: credibility, alertness and steady-handedness.
  它的实施将建立在三个自我强化的因素之上：可靠性、警示性和稳妥性。
• His thin, hawk-like nose gave his whole expression an air of alertness and decision.
  他那细长的鹰钩鼻给他平添了一种机警果断的表情。
• 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。
• Alertness must be bred into every soldier.
  警惕性必须渗透到每个战士的血管中去。
• 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。
• That can have a positive effect in small doses, improving alertness and well-being.
  这能给人体带来一些积极影响，如提高机敏度，增进健康。
• She also said the alertness will change according to the level of potential threat.
  她也说，警戒将随时根据受威胁的水平而调整。