n. the quality of a substance that is able to reboundn. rebounding from an impact (or series of impacts)v. spring back; spring away from an impactv. hit something so that it bounces
n. 跳, 跳跃, 弹力, 撞击vi. 反跳, 弹跳vt. 使跳回, 撞击[计] 打回