英语词汇“knock at”的读音、翻译、释义、用法及例句-智慧网

词汇	knock at
释义	knock atknock at1.■打, 捶, 敲He went upstairs and knocked at the door.他上楼敲门。Opportunity knocks at the door only once.机不可失, 时不再来。
随便看	flood surcharge flood surge flood survey flood synchronization flood synthesis flood the market floodtide flood tide flood tide depression flood tide gate floodtime flood trash flood tuff flood velocity flood volume flood wall floodwall flood warning flood warning service flood warping land floodwater flood waterline flood water zone flood wave flood wave recession

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