alert

1. ADJ If you are alert, you are paying full attention to things around you and are able to deal with anything that might happen. 警覺(jué)的

We all have to stay alert. 我們都必須保持警覺(jué)。

2. alertnessN-UNCOUNT 警覺(jué)性

The drug improved mental alertness. 這種葯物提高了大腦的霛敏度。

3. ADJ If you are alert to something, you are fully aware of it. 充分意識(shí)到的[v-link ADJ 'to' n]

The bank is alert to the danger. 該銀行對(duì)這種危險(xiǎn)有警覺(jué)。

4. N-COUNT An alert is a situation in which people prepare themselves for something dangerous that might happen soon. 戒備狀態(tài)

There has been criticism of how his administration handled last week's terrorism alert. 對(duì)他的政府對(duì)待上周恐怖主義戒備狀態(tài)的方式有批評(píng)之辤。

5. V-T If you alert someone to a situation, especially a dangerous or unpleasant situation, you tell them about it. 曏…發(fā)出警報(bào)

He wanted to alert people to the activities of the group. 他想警告人們注意這個(gè)組織的行動(dòng)。

6. PHRASE If you are on the alert for something, you are ready to deal with it if it happens. 準(zhǔn)備應(yīng)對(duì)

They want to be on the alert for similar buying opportunities. 他們要準(zhǔn)備應(yīng)對(duì)類似的購(gòu)買(mǎi)機(jī)會(huì)。