knock at 释义 敲门：指警察或士兵前来拘捕或带走某人的行为。 例句 1·I was wakened by a knock at the door. 敲门声把我吵醒了。 《牛津词典》 2·They heard a knock at the front door. 他们听到前门有一敲门声。 《柯林斯英汉双解大词典》 3·They were interrupted by a knock at the door. 他们被敲门声打断了。 《牛津词典》 同义词 敲（门、窗等） strikeknapp