noun [专属名词] 翻腾运动
Brown leaves were tumbling, flying wildly in the frozen air and reburying her. 棕色的落叶，在冰冷的空中翻滚、飞舞，掩埋她。
adjective [原级] 歪斜状的
That lint you see is from your clothes slowly being disintegrated by all the tumbling. 你看到的绒毛是从你的衣服上慢慢地被全部翻滚分解。
verb [vt. 及物动词] 摔倒；（使）跌倒；跌跌撞撞地走；用滚筒干燥机甩干；弄皱（tumble 的现在分词）
This year, eight universities formed the National Competitive Stunts and Tumbling Association (NCSTA). 今年，八所大学组成了国家竞技特技和翻滚协会 (NCSTA)。
