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I've got a headache.
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alert
[ə'lə:t]
n. 警惕,警戒,警报
a. 警惕的,警觉的
v. 警惕
a.机智的，灵敏的
n. 警惕,警戒,警报
a. 警惕的,警觉的
v. 警惕
a.机智的，灵敏的
词形变化
时 态：
a·lert·ed
,
a·lert·ing
,
a·lerts
名 词：
a·lert'ness
副 词：
a·lert'ly
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常用短语
air alert
n.空袭警报
on the alert
保持警惕,处于戒备,提防着
red alert
n.紧急警报 红色警戒,一个著名游戏的名称
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英英解释
1个动词解释
warn or arouse to a sense of danger or call to a state of preparedness
[同]
alarm
,
alert
[例]
The empty house alarmed him
We alerted the new neighbors to the high rate of burglaries
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3个名词解释
condition of heightened watchfulness or preparation for action
[同]
alert
,
qui vive
[例]
bombers were put on alert during the crisis
a warning serves to make you more alert to danger
[同]
alert
,
alerting
show all ... ( 3 )
an automatic signal (usually a sound) warning of danger
[同]
alarm
,
alarum
,
alert
,
warning signal
less ...
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4个形容词解释
very attentive or observant
[反]
unalert
[例]
an alert and responsive baby is a joy
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
mentally responsive
[例]
an alert mind
show all ... ( 4 )
not unconscious; especially having become conscious
[同]
alert
,
awake
[例]
the patient is now awake and alert
(usually followed by to') showing acute awareness; mentally perceptive
[同]
alert
,
alive
,
awake
[例]
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
less ...
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参考例句
Mentally
alert
and sharp; keen.
机智的头脑机灵和敏锐的;敏捷的
The
alert
listener will have noticed the error.
耳朵尖的人能听出这个错.
An
alert
or watchful person; a guardian.
机警的或警惕的人;守卫者。
Alert
and watchful;cautious.
谨慎的警觉且戒备的;谨慎的
The policemen were on the
alert
for an excaped convict.
一名逃脱犯令警方全面警戒。
The coast guard alerted the town to the coming hurricane.
海岸警备队令市民警觉即将来临的飓风。
We should stand by on a hurricane
alert
.
在暴风雨警戒期间我们应加戒备。
A sparrow is very
alert
in its movement.
麻雀的动作很敏捷。
more...
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参考网页
以下网页可能有助于你对本词条的理解：
Sirens sounded the alert for an air raid.
查看全文
Nuclear-armed bombers were put on the alert during the crisis.
查看全文
more...
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