形容词
1.
1. These kettles are all copper.
这些水壶全是铜的。
名词
1. He had only a few coppers in his pocket.
他兜里仅有几个铜板。
2. He had only a few coppers with him.
他身边只有几枚铜币。
3. He had only a few coppers in his pocket when he came to Detroit.
他来到底特律时，口袋里只有几枚铜币。