曲折

例句：

1. 1. The tree bends over to reach the fruit.
   这棵树弯下腰去够到果实。
2. 2. The old man bent his back to pick up the heavy bag.
   老人弯着背去拿那个沉重的袋子。
3. 3. The car bent its front wheels when it hit a pothole.
   汽车在碰到一个坑时，前轮弯曲了。