名词

1.不可数名词：铜

2.可数名词：铜币

3.可数名词：铜制品

词形变化

形容词coppery

时态coppered，coppering，coppers

英语解释

a ductile malleable reddish-brown corrosion-resistant diamagnetic metallic element; occurs in various minerals but is the only metal that occurs abundantly in large masses; used as an electrical and thermal conductor

a copper penny

any of various small butterflies of the family Lycaenidae having coppery wings

a reddish-brown color resembling the color of polished copper

coat with a layer of copper

uncomplimentary terms for a policeman