Meaning of shuāi:
shuāi
摔
Verb
to throw down; to fall; to drop and break
Tā bù xiǎo xīn bǎ bēi zi shuāi zài dì shàng.
他不小心把杯子摔在地上。
He accidentally threw the cup down onto the ground.
Tā bù xiǎo xīn cóng lóu tī shàng shuāi xià lái.
她不小心从楼梯上摔下来。
She accidentally fell down the stairs.
Tā bù xiǎoxīn bǎ bōlí bēi shuāi suì le.
她不小心把玻璃杯摔碎了。
She accidentally dropped and broke the glass cup.