alert

C1 CET-4 Oxf 5000 大学 FREQ #2677 ★★★☆☆

a. 警觉的, 灵敏的, 留心的 n. 警报 vt. 使警觉, 通知, 使意识到

发音

UK /əˈlɜːt/
US /əˈlɝt/

词形变化

alerts 复数 alerts alerted alerting alerts 三单 alerting 现在分词 alerted 过去式 alerted 过去分词 alerter alertest more alert 比较级 most alert 最高级

别名

AVPU BAR

教材释义与例句

名词

警戒，警惕；警报

动词

警告；使警觉，使意识到

形容词

警惕的，警觉的；留心的

释义与例句

n. C1 Oxf 5000
  1. 1.

    An alarm.

    警报

  2. 2.

    A notification of higher importance than an advisory.

  3. 3.

    A state of readiness for potential combat.

    政治 军事

    an airborne alert; ground alert

  4. 4.

    Synonym of bell (“bell character”).

    计算机 工程 数学
v. C1 Oxf 5000
  1. 1.

    To give warning to.

    警告

adj. C1 Oxf 5000
  1. 1.

    Attentive; awake; on guard.

    警惕

  2. 2.

    brisk; nimble; moving with celerity.

    废旧

词汇关系

名词

同义词 3

alarm alarum qui vive

上位词 8

sign signal warning preparation readiness signaling signalling preparedness

下位词 10

horn siren torpedo foghorn alarm-bell burglar alarm fire alarm fog signal red alert red flag
动词

同义词 1

alarm

上位词 1

warn

下位词 1

wake
形容词

同义词 10

alive awake merry rattling lively snappy spanking brisk watchful zippy

反义词 1

unalert

近义相关 10

fly aware energetic heads-up sleepless vigilant watchful lidless wakeful Argus-eyed

参见 3

awake lively wary

相关短语

alert five alert fatigue alert and oriented x1 alert and oriented x2 alert and oriented x3 alert and oriented x4 alert and oriented alert and oriented assessment medical alert jewelry amber alert red alert 紧急警报 on the alert 警惕着, 防备着 [法] 戒备, 留意 drink alert spoiler alert

词源

From French alerte (“alert”), from the phrase à l'erte (“on the watch”), from Italian all'erta (“to the height”), from erta (“lookout, tower”).

来源：wiktionary