tā / shuāi / dǎo / shí / zhuàng / dào / le / wěi / lǘ / gǔ / téng / le / hǎo / jǐ / tiān

他摔倒时撞到了尾闾骨，疼了好几天。

When he fell, he hit his tailbone and it hurt for several days.