他扶住椅子后背，以免摔倒。
He held onto the back of the chair to stop himself from falling.
我跳起来接球，结果摔倒了。
I jumped up to catch a ball and fell over.
她神志不清时，曾数次摔倒在地板上。
In her delirium, she had fallen to the floor several times.
他绊了一下，差点儿摔倒。
He stumbled and almost fell.
她绊了一跤摔倒了，擦伤了双掌和双膝。
She stumbled and fell, scraping her palms and knees.
