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 order urged the armed forces to enhance their alertness.
  该项命令敦促武装部队提高警惕。
• 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。
• When you are exposed to 1,000 lux, you are getting enough light for full alertness.
  当你处于1000勒克斯单位强度的光线环境下，你才能保持完全清醒的状态所需的充足光线。
• Our body clock, or natural body rhythm, influences our energy and alertness.
  我们的生物钟，或者说是生理节奏，会影响我们的精力和灵敏度。
• Alertness must be bred into every soldier.
  警惕性必须渗透到每个战士的血管中去。
• I know him well in that mood of alertness and suspicion.
  我对他这种警觉和猜疑的情绪是很熟悉的。
• In a lotus posture you can keep alertness to the very end.
  以莲花坐的姿势你就能保持警觉直至最尽头。
• 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。
• He drinks a lot of tea to maintain his mental alertness.
  他喝很多茶保持神智清楚。
• 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。