precious stone

例句：

1. 1. The diamond is a precious stone that symbolizes love.
   钻石是象征爱情的宝贵石头。
2. 2. The ancient city was built on the foundation of precious stones.
   这个古老的城市建立在珍贵的石头基础上。
3. 3.The precious stone was carefully polished to reveal its beauty.
   这块珍贵的石头被仔细打磨，展现出它的美丽。