柯林斯词典punching bag (punching bags) 1. N-COUNT [美国英语] →see punchbag 返回 punching bag剑桥词典a leather bag filled with air , hung from a frame or attached to a stand and used by boxers for training or exercise （悬挂在空中供练习拳击用的）吊袋，拳击梨球 返回 punching bag