warn ♦︎ caution ♦︎ alert ♦︎ tip sb offThese words all mean to tell sb about sth bad that is going to happen so that they can do sth about it.這些詞均表示提醒、告誡。PATTERNS AND COLLOCATIONS 句型和搭配◆to warn / caution (sb) against sth◆to warn sb / tip sb off about sth◆to warn / caution / alert sb / tip sb off that...◆to warn / alert / tip off the police / authorities■warn [transitive, intransitive] to tell sb about sth dangerous or unpleasant, so that they can avoid it; to strongly advise sb to do or not to do sth in order to avoid danger or punishment提醒;使警惕;警告◆I tried to warn him, but he wouldn't listen.我試圖提醒過他,可他就是不聽。◆He warned us against pickpockets.他提醒我們要提防小偷。◆I had been warned what to expect.有人事先提醒過我會出什麽事。◆She warned Billy to keep away from her daughter.她警告比利離她女兒遠點。◆The commander had been warned of the attack.有人已經警告過指揮官會有這次襲擊。◆'I'm warning you!' said James, losing his patience.“我警告你!”詹姆斯不耐煩地說道。◆The guidebook warns against walking alone at night.這本指南告誡人們不要在夜間單獨行走。■caution ˈkɔːʃn [intransitive, transitive] (formal) to tell sb about the possible dangers or problems of sth警告;告誡;提醒◆I would caution against getting too involved.我要提出警告,不要介入太深。◆The government cautioned that pay increases could lead to job losses.政府警告說,提高工資可能會導致失業。■alertəˈlɜːt; NAmEəˈlɜːrt [transitive] to tell sb about a dangerous or urgent situation so that they can do sth about it向⋯報警;使警惕;使戒備◆Neighbours quickly alerted the emergency services.鄰居們很快向應急部門報了警。◆Alerted by a noise downstairs, he sat up and turned on the light.樓下的響聲使他警覺,他坐起來打開燈。 see also alert ⇨ watchnoun■ˌtip sb ˈoff
phrasal verb
(-pp-) (ratherinformal) to tell sb secretly about sth that is going to happen, especially sth illegal or sth that will give them an advantage in business暗中警告,私下告誡,密報(尤指非法或能帶來經濟好處的事)◆Three men were arrested after police were tipped off about the raid.警方獲得有關襲擊的密報後,逮捕了三個人。◆He allegedly tipped off his friends, who sold shares in advance of the news becoming public.據稱他向朋友洩密,令他們得以在消息公布前就把股票賣掉了。
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