knocknɒk英式朗读美式朗读基本解释n. 敲, 敲打, 敲门 v. 敲击, 互撞, 攻击英文释义n. the sound of knocking (as on a door or in an engine or bearing) n. negative criticism n. a vigorous blow n. a bad experience词形变化过去式knocked过去分词knocked现在分词knocking复数knocks第三人称单数knocks上一个单词:knoche下一个单词:knock (intensity) indicator