tumble：使某人倒下或坠落（尤指身不由己或猛劲儿），但通常并无重伤
tumble down the stairs
从楼梯上摔下
Both of the wrestlers tried to tumble the adversary with all their strength.
双方摔跤运动员都使出了全身气力想把对手摔倒。
I shove forward one more time and, incredibly, the slab comes loose, and I tumble forward over it, caught in my own momentum.
我再一次向前猛推，难以置信的是，石碑松了，我向前跌倒在它上面，我自己的冲力使我摔倒。
ANYONE who saw Yao Ming tumble to the floor against the Portland Trailblazers in the first round of the NBA Playoffs had to feel for the man.
NBA季后赛上姚明对战波特兰开拓者队，相信任何人看到姚明摔倒在赛场上的一幕都会同情这位东方巨人。
fall：落下，跌落
fall down/over ：倒下（尤指突然间），倒塌
fall away/off 向下倾斜
fall into sth 进入某种状态，变成
It was displayed at the Fall Fair in Guangzhou.
它在广州秋季交易会上展出。
New programmes will appear in the fall on television.
秋季将有新节目在电视上出现。
If you take this medicine,all your symptoms will fall away.
如果你使用这种药物，你的所有症状将会消失。