• 铜币

Coppermann.科珀曼coppern.铜；铜币；警察；紫铜色；有紫铜色翅膀的小蝴蝶vt.镀铜copper-graphite brush铜石墨电刷copper matrix composite铜基复合材料copper-tolerant latex耐铜老化胶乳copper ammonia solution铜氨液copper-aluminum alloy铜铝合金copper graphite bearing铜石墨轴承copper electronic board印刷线路板copper overloaded model铜负荷模型copper-powder compact铜粉压型copper-sheathed cable无机绝缘电缆

1. He polished up an old copper coin.
   他擦亮了一枚古铜币。
2. In the museums we can see that Chinese copper money had a long history.
   在博物馆里我们可以看到中国使用的铜币具有很悠久的历史。