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	longshore wind longshore work longshortday plant long-short day plant long short story long-short story long shot long shot(LS) long shot tunnel long shunt long shunt compound generator long-shunt compound machine long-shunt compound winding long shunt winding long shuttle sewing machine long side long side round edge tile long sight long-sighted longsighted long silk waste long since long skip long skirt crown long slag

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