alertness

n.

警戒；机敏

alertness

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

alertness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。

alertness近义词

chariness brain watchfulness vigilance attentiveness awareness preparedness readiness on the qui vive sharp-sightedness alerting wakefulness