音标:['kɒpә] ; 柯林斯词典等级:2 级;
n. 铜, 警察
[化] 铜Cu
n. 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
n. a copper penny
n. a reddish-brown color resembling the color of polished copper
n. any of various small butterflies of the family Lycaenidae having coppery wings
词型变化:名词复数形式 : coppers ; 现在分词 : coppering ; 过去式 : coppered ; 第三人称单数 : coppers ; 过去分词 : coppered
考试类型:[四级/六级/考研/托福]
词性分布:
名词95%
形容词5%

copper的用法和样例:

例句

用作名词(n.)
  1. Copper conducts electricity better than iron does.铜的导电性比铁强。
  2. The shop sells copper vessels of all shapes.这家商店出售各种形状的铜器皿。
  3. He polished up the old copper coins.他把旧铜币擦亮。
  4. I gave him a few coppers.我给了他几个铜币。
  5. I know he is a plain-clothes copper.我知道他是个便衣警察。
  6. Her hair shone copper in the sunlight.她的头发在阳光下闪着紫铜色。
  7. The cloud-mussed sky turned a vague copper color.堆满乌云的天空现出一种混沌的紫铜色。
用作及物动词(vt.)
  1. Zinc base die castings are always copper plated in cyanide baths.锌基合金的压铸件总是在氰化镀液中镀铜。
  2. The development history of cyanide-free copper electroplating is briefly reviewed.摘要简要回顾了无氰碱性镀铜的发展历史。

常见句型

用作名词(n.)
  1. Copper conducts electricity well.铜是电的良导体。
  2. Have you any coppers in your change?你的零钱里有铜币吗?
  3. This store sells all kinds of copper.这家商店出售各种铜制品。

词汇搭配

用作名词 (n.)
动词+~
  • ask for〔collect〕 coppers要〔收集〕铜币
  • cast〔toss〕 coppers扔铜币
  • mine copper开发铜矿
形容词+~
  • greasy copper铜臭
~+名词
  • copper manufactures铜制品
  • copper sulphate硫酸铜
  • copper wire铜丝
介词+~
  • four pence in coppers四便士铜币
  • fine work on copper铜币上的美术精品
【近义词】

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For the last two years, the Los Angeles area has seen an increasing number of metal thefts, reported Paul Moyer, co-anchor of the local 6 oclock news. Sometime before dawn Wednesday, thieves had stolen the copper wire out of six lamp posts. A day ear

发表于:2019-01-27 / 阅读(64) / 评论(0) 分类 365个英语简短小故事

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