2 sentences

1. 他已经开始秃顶了。

   tā yǐ​jīng kāi​shǐ tū​dǐng le.

   He has already started to go bald.

   Source: Dong Chinese Dictionary

2. 你父亲秃顶吗？

   nǐ fù​qīn tū​dǐng ma?

   Is your father bald?

   Source: OpenSubtitles