granite pilllar and picture

例句：

1. 1. The building is made of granite.
   这座建筑是用花岗岩建造的。
2. 2. Granite is a hard and durable material.
   花岗岩是一种坚硬耐用的材料。
3. 3. Granite is often used for flooring in modern homes.
   花岗岩常用于现代家居的地板材料。