alertness

英 [ə'lɜːtnəs] 美 [ə'lɜːtnəs]

• n. 警戒；机敏

英英释义

Noun:

1. the process of paying close and continuous attention;

   "wakefulness, watchfulness, and bellicosity make a good hunter"
   "vigilance is especially susceptible to fatigue"
   

2. a state of readiness to respond;

   "alerting was indicated by the desynchronization of the EEG"
   

3. lively attentiveness

例句

用作名词 (n.)

1. 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。
2. They also increase alertness and energy.
   它们也能提高机敏性和精力。
3. Without Alertness I'll be stupid.
   没有机敏那是愚蠢。

词汇搭配

• alert 警觉的
• over alertness 过度警觉

近反义词

【近义词】

• chariness 谨慎
• brain 脑
• watchfulness 警觉性
• vigilance 警戒
• attentiveness 注意
• awareness 认识
• preparedness 准备(尤指充实军备）...
• readiness 准备就绪
• on the qui vive 警戒着,时时提防着...
• sharp-sightedness sharp-sighte...
• alerting 发信号
• wakefulness 觉醒