shuāi
摔跤
shuāi jiāo
wrestling / to fall down
摔了一个跟头。
shuāi le yí gè gēn tou.
Took a tumble / fell down.
敌机冒着黑烟摔下来。
dí jī mào zhe hēi yān shuāi xià lái.
The enemy plane fell down trailing black smoke.