| 单词 | alert |
| 释义 | alert I. 1. a. < silent and alert, like a sentinel on duty — J.G.Frazer > < the alert Washington who guided Braddock's army — Allan Nevins & H.S.Commager > b. < alert to the script's theatrical possibilities — John Mason Brown > < alert to urge favorable legislation by Congress — Louis Pelzer > 2. < an alert birdlike movement — Ellen Glasgow > < light, alert step and a certain gamesome assurance of manner — G.B.Shaw > Synonyms: see intelligent, watchful II. 1. a. b. 2. < sirens brought the whole street to the alert > — see blue alert, red alert, white alert, yellow alert • - on the alert III. transitive verb 1. a. < hurricane warning systems for alerting island residents > < vigilantes who could alert each community to the threatened danger — Atlantic > especially < sirens alerting the cities long before the bombers arrived > b. < alerted the division for shipment overseas > 2. < alerted a community to the need for better schools > < a matter of alerting teachers to their responsibility — Educational Leadership > intransitive verb < after proceeding several hundred yards … the patrol's scout dog alerted > < dogs alert on all human beings, not the enemy alone — Infantry Journal > |
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