to fall quickly and without control跌倒;滚下,坠落;倒塌
I lost my footing and tumbled down the stairs.我一失足从楼梯上滚了下来。
At any moment the whole building could tumble down.整幢建筑随时有可能坍塌。
He lost his balance and tumbled over.他失去平衡摔倒了。
to fall a lot in value in a short time(价值)暴跌,骤降
Share prices tumbled yesterday.昨天股票大跌。
to move in an uncontrolled way, as if falling or likely to fall跌跌撞撞地走
An excited group of children tumbled out of school/the bus.一群激动不已的孩子一窝蜂地跑出了学校/跑下了公共汽车。