3 sentences

1. 总共有8个石子。

   zǒng​gòng yǒu8 ge shí​zǐ.

   There are a total of 8 stones.

   Source: CCMatrix

2. 有个石子击到汽车上，打坏了漆面。

   yǒu ge shí​zǐ jī dào qì​chē shang, dǎ huài le qī miàn.

   A stone hit the car and damaged the paintwork.

   Source: UM-Corpus: Science

3. 工人们把沙，石子和水泥混和成混凝土。

   gōng​rén men bǎ shā, shí​zǐ hé shuǐ​ní hùn​hé chéng hùn​níng​tǔ.

   The workmen mixed sand, gravel, and cement to make concrete.

   Source: UM-Corpus: News