copper

英 [ˈkɒpə(r)]

美 [ˈkɑːpər]

n. 铜; 铜币; 警察

复数：coppers　现在分词：coppering　过去式：coppered　第三人称单数：coppers　过去分词：coppered　

Collins.2 / BNC.3656 / COCA.5053

牛津词典

noun

铜
a chemical element. Copper is a soft reddish-brown metal used for making electric wires, pipes and coins
1. a copper mine
  铜矿
2. copper pipes
  铜管
3. copper-coloured hair
  红棕色的头发
铜币
brown coins that do not have much value
1. I only paid a few coppers for it.
  我只花了几个铜板买下这东西。
警察
a police officer

N-UNCOUNT 铜
Copperis reddish brown metal that is used to make things such as coins and electrical wires.
1. Chile is the world's largest producer of copper.
  智利是世界上最大的产铜国。
2. ...a copper mine.
  铜矿
ADJ 铜色的;紫铜色的;红棕色的
Copperis sometimes used to describe things that are reddish-brown in colour.
1. His hair has reverted back to its original copper hue.
  他的头发又变回原来的淡红棕色。
铜板;铜币
Coppersare brown metal coins of low value.
N-COUNT 警察
Acopperis a policeman or a policewoman.
1. ...your friendly neighbourhood copper.
  你们友善的社区警察

noun

any of various small butterflies of the family Lycaenidae having coppery wings
a reddish-brown color resembling the color of polished copper
Synonym:copper color
uncomplimentary terms for a policeman
Synonym:bullcopfuzzpig
a copper penny
a ductile malleable reddish-brown corrosion-resistant diamagnetic metallic element
Synonym:Cuatomic number 29

verb

Chile is the world's largest producer of copper.
智利是世界上最大的产铜国。
Copper is a good conductor of heat.
铜是热的良导体。
Among the mineral deposits of the province, tin occupies first place; copper comes second.
该省矿藏，以锡最多，铜次之。
Which is the most conductive: iron, copper or silver?
铁、铜和银，哪种传导性最好？
Copper nails are better than iron nails because the iron rusts
铜钉比铁钉好，因为铁会生锈。
His hair has reverted back to its original copper hue.
他的头发又变回原来的淡红棕色。
Copper and gold are both metals.
铜和金都是金属。
We tried to grow some copper sulphate crystals with our children.
我们想跟孩子们一起制作硫酸铜晶体。
The government pre-empted a threatened strike at the state-owned copper company.
政府先发制人，制止了国有铜矿公司可能发生的一次罢工。
Although hit by the flood, they did not ask for a single copper from the state.
尽管遭了水灾，他们却没有向国家伸手要一分钱。