您要查找的是不是：
- 铜copper(Cu)
- 镀铜copperize
- 铜的cupreous
- 铜片sheet copper
- 古铜bronze
- 铜色copper
- 铜套copper sheathing
- 铜合金aldary
- 铜棒copper rod
- 铜（Cu2+）Copper
- 纯铜pure copper
- 铜芯线copper core
- 磷铜phosphor copper
- 铜块copper billet
- 铍铜beryllium copper
- 废铜scrap copper
- 铜奖章Bronze medal
- 铜带copper strip
- 铜皮copper sheet
- 她正敲着铜钟。She was clanging the brass bell.
