3 sentences

1. 刁先生是一位著名的数学家。

   Diāo xiān​sheng shì yī wèi zhù​míng de shù​xué​jiā.

   Mr. Diao is a famous mathematician.

   Source: Dong Chinese Dictionary

2. 以前这里常有刁民聚众滋事。

   yǐ​qián zhè​lǐ cháng yǒu diāo mín jù​zhòng zī​shì.

   In the past, unruly people often gathered here to cause trouble.

   Source: Dong Chinese Dictionary

3. 他这人做事很刁，总是想方设法占便宜。

   tā zhèi rén zuò​shì hěn diāo, zǒng​shì xiǎng​fāng​shè​fǎ zhàn pián​yi.

   He is very tricky in his dealings and always tries to find ways to take advantage of others.

   Source: Dong Chinese Dictionary