n. an acrobatic feat of rolling or turning end over end
v. fall down, as if collapsing
v. roll over and over, back and forth
v. throw together in a confused mass
n. 跌倒, 摔跤, 翻斤斗
vi. 翻倒, 摔倒, 倒塌, 滚动, 翻斤斗, 仓促地行动
vt. 使摔倒, 使滚翻, 弄乱
1. The child loves to tumble on the grass.
孩子喜欢在草地上翻滚。
2. Be careful not to tumble down the stairs.
小心不要从楼梯上摔下来。
3. The leaves tumble from the trees in autumn.
秋天，树叶从树上飘落。