- 跌倒，摔倒：
She tumbled off her bicycle.
她从自行车上摔了下来。
The baby tumbled to the ground.
婴儿跌倒在地。
A book tumbled off the shelf.
一本书从架子上掉了下来。
- 被绊倒；绊：
The boy tumbled over a stone.
男孩被一块石头绊了一跤。
- (从权利等)突降；被推翻；(价格等)暴跌：
The stock market tumbled.
股市行情看跌。
The government tumbled.
政府被推翻了。
- 毁灭；崩溃；倒塌：
The deserted building tumbled down when an earthquake happened.
那座荒无人住的建筑物在发生地震时倒塌了。
- 翻来覆去，翻腾；打滚：
The patient tumbled restlessly in his bed.
病人焦躁不安地在床上翻来滚去。
- 匆匆忙忙地倾倒出来；仓促地行动；莽莽撞撞(或跌跌撞撞)地走：
We tumbled out of bed at 5 o'clock in the morning.
我们清晨五点迷迷糊糊地起了床。
He tumbled into the meeting room.
他莽莽撞撞地走进了会议室。
The old man tumbled down the stairs.
老人跌跌撞撞地走下楼梯。
She tumbled into love.
她坠入了爱河。
- [口语]领会，了解；终于明白，恍然大悟(与to连用)：
All at once I tumbled to what he meant.
我突然明白了他的意思。
At last, she tumbled to the fact that he had been deceiving her for a long time.
她终于明白他已经欺骗她很长时间了。
- 偶然发现：
I tumbled upon an interesting book in the library.
我在图书馆偶然发现了一本有趣的书。
- 翻筋斗，滚翻，表演杂技：
The acrobats tumbled over the stage.
杂技演员们在舞台上翻筋斗。