alert

英 [?'l??t] 美[?'l?t]

反義詞

CET4TEM4GRE考研TOEFLCET6中頻詞核心詞匯

復數:?alerts;第三人稱單數:?alerts;過去式:?alerted;過去分詞:?alerted;現在分詞:?alerting;名詞:?alertness;

alert 警醒的

來自意大利語all’erta. -erta, 同 erect，豎直。即全部到城墻上守城。

alert: alert: [17] Alert comes, via French, from an Italian phrase all’ erta ‘on the look-out’, or literally ‘at the (alla) watch-tower (erta)’. Erta was short for torre erta, literally ‘high tower’, in which the adjective erta ‘high’ came ultimately from Latin ērectus, the past participle of ērigere ‘raise’.
=> erect
alert (adv.): "on the watch," 1590s, from French alerte "vigilant" (17c.), from phrase à l'erte "on the watch," from Italian all'erta "to the height," from erta "lookout, high tower," noun use of fem. of erto, past participle of ergere "raise up," from Latin erigere "raise" (see erect). The adjective is attested from 1610s, the noun from 1803, and the verb from 1868. Related: Alerted; alerting.

1. The armed forces were on high alert to guard against any retaliation.: 武裝部隊保持高度戒備，以防發生任何報復行動。

2. They want to be on the alert for similar buying opportunities.: 他們希望隨時掌握有關類似購買機會的信息。

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