使震惊，造成混乱，使激动
1. (俚語) 使人吃驚; 讓人驚異：.an amazing performance that knocked the audience dead一場令觀眾感受深刻精彩的表演 | .knock for a loop (俚語) 使人吃驚; 讓人驚異 | .knock it off (俚語) (用在祈使句) 別再吵了! 住口!