| 词汇 | alert |
| 释义 | alert /ә`lɝt/ adj. On the watch; active; brisk; ready; vigilant. 留心的；活泼的；敏捷的；警觉的；防备的。 n. A warning signal; a guarding against surprise. 警报；警备；注意；小心。 Period during which an alert is in effect. 警戒或警报期间。 phrases on the alert 注意的；防守的；警戒的。 (过去式: alerted; 过去完成式: alerted; 现在进行式: alerting) v.t. To put on guard. 使警戒；使警觉。 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。 to alert a community to dangers of inflation 令社会警觉通货膨账的危机。 derivatives adv. alertly. n. alertness. synonyms attentive, observant, prompt. |
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