硬币形的

例句：

1. 1. He found a small coin in his pocket.
   他在口袋里发现了一枚小硬币。
2. 2. The old man kept a collection of coins from around the world.
   这位老人收藏着来自世界各地的硬币。
3. 3. The coin was worth more than the price of the house.
   这枚硬币的价值超过了房子的价格。