Copperin枸橼酸铁铵和铜制剂coppern.铜；铜币；警察；紫铜色；有紫铜色翅膀的小蝴蝶vt.镀铜copper coated镀铜的copper solder铜焊料copper washer铜垫圈copper flower铜草coppersiliconn.硅铜copper funnel铜漏斗copper screen铜网copper shield铜屏蔽copperglazing铜条装配玻璃copper plates铜带

1. Heating a copper bar will cause it to expand.
   加热一根铜棒会使它膨胀。
2. In Anterwerp, all the copper bars were brought alongside by lorries.
   在安特卫普，所有铜条都是用载货卡车运送的。