alertness
n. 警戒；机敏
近义词：chariness，brain，watchfulness，vigilance，attentiveness，awareness，preparedness，readiness，onthequivive，sharp-sightedness，alerting，wakefulness，
英英释义
Noun
- the process of paying close and continuous attention;
"wakefulness, watchfulness, and bellicosity make a good hunter" "vigilance is especially susceptible to fatigue"
- a state of readiness to respond;
"alerting was indicated by the desynchronization of the EEG"
- lively attentiveness
例句
用作名词(n.)
- 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。
- They also increase alertness and energy.它们也能提高机敏性和精力。
- Without Alertness I'll be stupid.没有机敏那是愚蠢。