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	打耳光打胎的打胜打草稿打落打虫药打蛋器打补钉打褶打褶的打褶装置打诨打谷打谷场 twin-rotor housing twin-rotor layout twin-rotor side-intake-port engine twin rotor system twin-row twin row cultivator twin-row drill twin-row faller twin row radial engine Twins twins

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