Alert

[ə'lɜːt] or [ə'lɝt]

解释:

(noun.) a warning serves to make you more alert to danger.

(noun.) condition of heightened watchfulness or preparation for action; 'bombers were put on alert during the crisis'.

(adj.) engaged in or accustomed to close observation; 'caught by a couple of alert cops'; 'alert enough to spot the opportunity when it came'; 'constantly alert and vigilant, like a sentinel on duty' .

(adj.) mentally perceptive and responsive;'an alert mind'; 'alert to the problems'; 'alive to what is going on'; 'awake to the dangers of her situation'; 'was now awake to the reality of his predicament' .

(adj.) quick and energetic; 'a brisk walk in the park'; 'a lively gait'; 'a merry chase'; 'traveling at a rattling rate'; 'a snappy pace'; 'a spanking breeze' .

手打:索菲--From WordNet

解释:

(a.) Watchful; vigilant; active in vigilance.

(a.) Brisk; nimble; moving with celerity.

(n.) An alarm from a real or threatened attack; a sudden attack; also, a bugle sound to give warning.

汉密尔顿校对

同义词及近义词：

a. [1]. Watchful, vigilant, circumspect, wary, heedful, on the alert, on one's guard, on the watch, on the lookout.[2]. Active, brisk, nimble, agile, smart, lively, sprightly, spirited, supple, quick, spry, ready, prompt.

校对:谢尔曼

同义词及反义词：

SYN:Active, brisk, nimble, prepared, prompt, vigilant, ready, wakeful, watchful,on_the_watch, lively

ANT:Slow, sleepy, lazy, absent, unready, oblivious, sluggish, inactive, unwatchful,dilatory, drowsy

手打:维罗妮卡

解释:

adj. watchful: brisk.—n. a sudden attack or surprise.—adv. Alert′ly.—n. Alert′ness.—Upon the alert upon the watch.

尤金伲亚整理