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alert

noun

ADJECTIVE | VERB + ALERT | ALERT + VERB | PREPOSITION | PHRASES ADJECTIVEheightened, high高度戒備狀態The country has put its troops on high alert.該國部隊處於高度戒備狀態。full全面戒備狀態amber, orange, red, yellow黃色戒備等級;橙色戒備等級;紅色戒備等級His sudden disappearance triggered a red alert among his friends.他的突然失踪讓朋友們都緊張起來。nationwide全國範圍的緊急戒備狀態bomb, fire, flood, pollution, security, terror轟炸/火災/洪水/污染/安全/恐怖警報A security alert was issued after four men escaped from the prison.4 名罪犯越獄後,當局發出安全警報。email電子郵件警報Receive regular email alerts about breaking news.定時接收有關爆炸式新聞的電子郵件提醒。VERB + ALERTissue, put out, raise, sound發出警報;拉響警報They rang the bells to sound the alert.他們敲響了鐘,發出警報。spark, trigger觸發/引發警報call off解除警報The alert was called off when it was found that the bomb was not live.發現炸彈未裝炸藥時,警報就解除了。ALERT + VERBgo out警報發佈A nationwide alert went out for three escaped prisoners.全國範圍內發佈了警報,搜捕 3 名越獄逃犯。PREPOSITIONon the alert戒備着;防備着alert for密切注意⋯You should always be on the alert for anyone who looks suspicious.你們應該時刻密切注意形跡可疑的人。PHRASESbe on full alert處於全面警戒狀態The security forces are now on full alert.安全部隊現在處於全面警戒狀態。place sb on alert, put sb on alert使某人處於戒備狀態Thousands of police were put on full alert at all main roads leading to the city.在通向該城市的所有主要道路上有特派的數千警察全面戒備。keep sb on alert使某人保持戒備狀態a state of alert戒備狀態The army was yesterday placed on a state of alert in case of more riots.軍隊昨天處於戒備狀態以防出現更多的暴亂。
alert

adjective

VERBS | ADVERB | PREPOSITION VERBSbe, look, seem警覺;看上去很警覺;好像很警惕become變得警覺remain, stay保持警覺keep sb使某人保持警覺The machine should help to keep the pilot alert.機器會幫助飛行員保持警覺。ADVERBextremely, fairly, very, etc.極其/相當/非常警惕fully完全警覺immediately, instantly, suddenly立刻/立即/突然警覺起來There was a noise outside and he was suddenly alert.外面有聲響,他突然警覺起來。always, constantly總是很警覺;始終保持警惕mentally機警He was as mentally alert as a man half his age.他像年齡小他一半的人一樣機警。PREPOSITIONto對⋯保持警惕Climbers need to be alert to possible dangers.登山者需要對可能存在的危險保持警惕。

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