地上很滑，小心摔倒。

Dìshang hěn huá, xiǎoxīn shuāidǎo.

The ground is slippery—be careful not to fall.

我刚摔倒了。

Wǒ gāng shuāidǎo le.

I just fell down.

他摔倒在地上。

Tā shuāi dǎo zài dìshàng.

He fell down to the ground.