alert的解释

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. 警惕的,警觉的,注意的 watchful and ready to deal with danger
2. 机灵的,敏捷的 quick to see and act

1. vt. 使处于戒备状态; 警告 make sb watchful and ready for possible danger

1. [C][S]警戒；戒备；警惕 a situation in which people are watching for danger and ready to deal with it
2. [C]警报 a warning of danger or of a problem

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

1. alert作形容词的基本意思是“警惕的,警觉的,注意的”,指特别留神以应付可能发生的事,尤指危险的事; 引申也可指“机灵的,敏捷的”,指思维敏捷,理解快,可用来形容人,也可用来形容物。
2. alert常用作表语,后接介词in或to,偶尔也可用作定语。

1. alert的基本意思是指让某人对可能发生的危险或潜在的危险保持警觉或准备好迎击敌人,可译作“(向)…发出警告,使处于戒备状态”。
2. alert是及物动词,提醒、警觉或戒备的内容常由介词to引出,提醒作为准备的内容则由介词for引出。
3. alert也接双宾语,其直接宾语多为that引导的从句。alert还可接以动词不定式充当补足语的复合宾语。

1. 常用作定语形容词，如an alert man或his alert attention；
2. 作为动词时，alert的宾语后可接that从句。

   The villagers alerted the traveller that wolves might come out in the night.