tā / zài / shī huá / de / tái jiē / shàng / cǎi kōng / zhěng gè rén / yí xià zi / shuāi / le / gè / mǎ pā

他在湿滑的台阶上踩空，整个人一下子摔了个马趴。

He missed a step on the slippery stairs and fell flat on his face.