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	Teutomaniac Teuton Teutones Teutonic Teutonism Teutonist Teutonization Teutonize Teutophil Teutophile Teutophobe stationary phase method stationary picture stationary-piston sampler stationary plane stationary plant stationary plate stationary platen document copying machine stationary plate type regenerative air preheater stationary platform stationary point stationary point on a curve stationary point thermometer stationary Poisson process stationary policy

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