简明英汉词典

alert
[E5lE:t]
adj.
提防的, 警惕的
n.
警惕, 警报

基本词义

ALERT
=Alcohol Level Evaluation Roadside Test 路边酒精浓度鉴定试验(防止司机酒后驾车的测试系统)

美国传统词典[双解]

alert
a.lert
AHD:[…-l?rt“]
D.J.[*6l*8t]
K.K.[*6l)t]
adj.(形容词)

(1)

Vigilantly attentive; watchful:
警觉的,警惕的;注意的:
alert to danger; an alert bank guard.See Synonyms at aware
警惕危险;警觉的银行保安人员参见 aware

(2)

Mentally responsive and perceptive; quick.
思维敏捷的:思维反应迅速且感觉灵敏的;快速敏捷的

(3)

Brisk or lively in action:
活泼的:行动轻快或有活力的:
the bird's alert hopping from branch to branch.
小鸟在树枝间欢快地跳跃
n.(名词)

(1)

A signal that warns of attack or danger:
警报:警告进攻或危险的信号:
Sirens sounded the alert for an air raid.See Synonyms at alarm
空袭警报的警笛响起参见 alarm

(2)

A condition or period of heightened watchfulness or preparation for action:
警戒状态:高度警惕或准备随时行动的状态或阶段:
Nuclear-armed bombers were put on alert during the crisis.
核武装轰炸机在危机期间负责警戒
v.tr.(及物动词)
a.lert.eda.lert.inga.lerts
To notify of approaching danger or action; warn:
向…报警:对临近的危险或行动发出通知;警告:
a flashing red light that alerted motorists to trouble ahead.
闪烁的红灯警告摩托车手前面有危险

习惯用语

on the alert
Watchful and prepared for danger, emergency, or opportunity:
警戒着,防备着:注意着且防备着危险、意外或机会:
bird watchers on the alert for a rare species.
看守者人密切注意稀有鸟类

语源

(1)

French alerte
法语 alerte

(2)

from Italian all' erta [on the lookout]
源自 意大利语 all' erta [密切注意]

(3)

alla [to the, on the] from Latin ad illam [to that] ad- [ad-] illam [accusative of] illa [that] * see al- 1
alla [对…,在…之上] 源自 拉丁语 ad illam [对那个] ad- [前缀,表“朝向”] illam [] illa的宾格 [那] *参见 al- 1

(4)

erta [lookout] [from past participle of] ergere [to raise] from Latin ?e * see erect
erta [注意] [] 源自ergere的过去分词 [举起] 源自 拉丁语 ?e *参见 erect

现代英汉词典

alert
[E5l\:t]
adj.

(1)

警觉的;警惕的; 机警的
He is an alert boy.
他是一个机警的孩子。

(2)

机灵的;活跃的
You must keep alert in class.
你们应该在课堂上保持活跃。

词性变化

alert
n.

(1)

警报

(2)

警戒期间

alert
vt.
(常与to连用)警告
The doctor alerted me to the dangers of smoking.
医生警告我注意吸烟的危险。
The policeman alerted me to the danger.
警察警告我有危险。

现代英汉综合大辞典

alert
[E5lE:t]
adj.

(1)

警惕的; 警觉的, 留心的

(2)

活跃的, 敏捷的, 机灵的

词性变化

alert
[E5lE:t]
n.

(1)

注意, 小心; 警戒; 警报

(2)

警报[戒]期间

(3)

【军】紧急待命

(4)

待命的通知
No. one alert
一级战备
One should not run about aimlessly during an alert.
空袭警报期间不可到处乱跑。

alert
[E5lE:t]
vt.

(1)

使...处于戒备

(2)

发空袭或暴风警报给...

(3)

警告...作...准备
The radio alert ed the citizens to prepare for the hurricane.
电台警告市民们作好预防暴风准备。

继承用法

alertly
adv.

alertness
n.

习惯用语

air alert
空袭警报; 空中待机(飞机起飞, 在空中待命)

air-raid alert
空袭警报

be on the alert
注意; 提防; 警戒

blue alert
(预备警报后的)空袭警报; 台风警报

put on the alert
(军队)处于戒备状态

red alert
紧急警报; 紧急戒备

white alert
解除警报

alert to do
留心做

alert ...to the fact that
提醒...注意如下事实

yellow alert
预备警报

特殊用法

active alert
战斗警报

battle alert
战斗警报

ground alert
地面待战[值班]; 地面待战信号[飞机]

long-duration alert
长期待战[戒备]

malfunction alert
故障报警器

alert by radar
雷达警戒

基本词义

ALERT

(1)

=Alcohol Level Evaluation Roadside Test 路边酒精浓度鉴定试验(防止司机酒后驾车的测试系统);

(2)

Automated Law Enforcement Reporting Technique 自动化法律实施通报技术;

(3)

Automatic Logging Electronic Reporting and Telemetering 自动记录式电子报告与遥测系统

英文相关词典

alert
attentive    lively    nimble    on the job    prompt    ready    watchful    dull    slow    torpid    

[七国语言]英汉公共大词典

alert
警戒的;敏捷的;发出警报

美国传统词典

alert
a.lert
AHD:[…-l?rt“]
D.J.[*6l*8t]
K.K.[*6l)t]
adj.

(1)

Vigilantly attentive; watchful:
alert to danger; an alert bank guard.See Synonyms at aware

(2)

Mentally responsive and perceptive; quick.

(3)

Brisk or lively in action:
the bird's alert hopping from branch to branch.
n.

(1)

A signal that warns of attack or danger:
Sirens sounded the alert for an air raid.See Synonyms at alarm

(2)

A condition or period of heightened watchfulness or preparation for action:
Nuclear-armed bombers were put on alert during the crisis.
v.tr.
a.lert.ed, a.lert.ing, a.lerts
To notify of approaching danger or action; warn:
a flashing red light that alerted motorists to trouble ahead.

习惯用语

on the alert
Watchful and prepared for danger, emergency, or opportunity:
bird watchers on the alert for a rare species.

语源

(1)

French alerte

(2)

from Italian all' erta [on the lookout]

(3)

alla [to the, on the] from Latin ad illam [to that] ad- [ad-] illam [accusative of] illa [that] * see al- 1

(4)

erta [lookout] [from past participle of] ergere [to raise] from Latin ?e * see erect

英汉船舶大词典

alert
n.待命行动,警惕的

英汉电力大词典

alert
n.告警信号,通知信号

朗文英汉综合电脑词典

alert
报警(信号)

英汉电信大词典

alert
n.告警信号,通知信号

英汉地质大词典

alert
n.警报信号,待机状态,待命

英汉航空大词典

alert
n.警戒,告警;n.使警觉,使处于警戒状态;n.准备状态,戒备状态

英汉化学大词典

alert
adj.留心的;n.禁戒,警报

英汉海运大词典

alert
机灵的警戒,注意

基本词义

alert
机灵的警戒,注意警报

英汉经贸大词典

alert
adj.留心的;n.禁戒,警报

英汉计算机大词典

alert
adj.留心的;n.禁戒(警报)

英汉建筑大词典

alert
vt.警惕的,机警的

英汉水利大词典

alert
n.警觉的,机灵的,警报

英汉心理学大词典

alert
警觉

英汉冶金大词典

alert
n.警报

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