alert的语法 alert的语法是什么

1. 警觉的，警惕的
2. 留神的
3. 机敏的，机灵的，灵活的，机警的，灵敏的
4. 精神抖擞的
5. 细心的
6. 活跃的

1. 警戒期间，警戒期间，警报发出后，待机出动的时间
2. 警戒，警报，警惕，戒备
3. 警戒状态
4. 【军】紧急待命，战备，待命行动
5. 发警报
6. 报警信号
7. “警戒”（英国制造的巡逻艇）

1. 使警觉， 使警戒，（使）警惕，使戒备，使（某人）保持警觉
2. 使注意，提醒，使...意识到， 使认识到，提醒（某人）注意
3. 通知待命，通知，通报
4. 向…报警，向…发出警报
5. 告诉
6. 发出警告，命令警戒
7. 清醒

1. condition of heightened watchfulness or preparation for action;

   "bombers were put on alert during the crisis"
   

2. a warning serves to make you more alert to danger
3. an automatic signal (usually a sound) warning of danger

1. 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"
   

2. 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"
   

3. 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"
   

1. warn or arouse to a sense of danger or call to a state of preparedness;

   "The empty house alarmed him"
   "We alerted the new neighbors to the high rate of burglaries"
   

1.警觉的；警惕的；留神的；机敏的
If you arealert, you are paying full attention to things around you and are able to deal with anything that might happen.

e.g. We all have to stayalert...
我们大家都必须保持警惕。
e.g. He had been spotted by analert neighbour.
一个警觉的邻居发现了他。

2.充分意识到…的;完全感觉到…的
If you arealert to something, you are fully aware of it.

e.g. The bank isalert to the danger.
银行充分意识到了危险。

3.警戒（状态）；戒备（状态）
Analert is a situation in which people prepare themselves for something dangerous that might happen soon.

e.g. Due to a securityalert, this train will not be stopping at Oxford Circus.
由于安全戒备的原因，该次列车在“牛津街口广场”站将不停留。

4.向…报警；使警觉；使警惕；使注意
If youalert someoneto a situation, especially a dangerous or unpleasant situation, you tell them about it.

alert的意思

e.g. He wanted toalert people to the activities of the group...
他想提醒人们小心该团体的活动。
e.g. I was hoping he'dalert the police.
我当时希望他会报警。

5. see also: red alert

6.处于警戒状态;保持戒备
If soldiers or police areon alert, they are ready to deal with anything that may happen.

e.g. Soldiers and police have been put onalert.
士兵和警方都已进入警戒状态。

7.准备就绪；防备着
If you areon the alert for something, you are ready to deal with it if it happens.

e.g. They want to be on thealert for similar buying opportunities.
他们希望随时掌握有关类似购买机会的信息。

on alert

警戒着，防备着 ready to take action to deal with a dangerous situation

on the alert

密切注意着，随时准备着paying attention to what is happening and ready to react quickly if necessary

• alert mind反应敏捷的头脑
• alert movements敏捷的动作

• alert mentally思想上警惕

• alert in answering questions留心回答问题
• alert to随时注意
• alert to every sound and movement对任何响动都很警觉

• alert the public提醒公众

• alert amazingly吃惊地警告
• alert cautiously小心地警告
• alert extremely完全地警告
• alert guardedly谨慎地警告
• alert resolutely绝对地警告
• alert sharply尖锐地警告
• alert wisely聪明地警告

• alert to the danger提醒注意其危险性
• alert to the need提醒注意其必要性

• call an alert发出警报
• sound the alert拉响警报
• call off an alert取消警戒状态
• go on alert进入戒备

• 24-hour alert昼夜警戒
• active alert战斗警报
• blue alert空袭警报
• false alert假警报
• full alert全面戒备状态
• general alert全面警戒
• No 1 alert一级战备
• preliminary alert预备警报
• red alert紧急警报
• white alert解除警报
• yellow alert预备警报

• air alert空袭警报
• ground alert地面待战
• malfunction alert故障报警
• nuclear alert核警报

• during an alert在警戒期间
• in state of alert处于警戒状态

• the alert against any possible aggression警惕任何可能的侵略
• the alert for any indications of battle注意任何战事的迹象

on alert,on the alert

这两个短语形似义近，其区别是：

on alert是针对危险情况的，意思是“防备着”；on the alert是针对事态发展的，意思是“随时准备着”。