tumble/ˋtʌmbḷ; ˈtʌmb$l/v [I] 1 to fall somewhere suddenly 跌倒﹔滚落: +down/into etc She lost her balance and tumbled backwards. 她失去平衡﹐朝后倒去。 2 to move somewhere in an uncontrolled way 胡乱地走: +into/out etc The door opened and a group of students tumbled out. 门开了﹐一群学生一窝蜂地走了出来。 3 if prices tumble, they suddenly become much lower〔价格〕暴跌﹐急遽下降: Share prices tumbled yesterday. 昨天股价暴跌。 —tumble n [C]