Word · Frequency #3656
copper
铜
核心释义
a reddish-brown metallic chemical element with the symbol Cu; also the metal made of it
- 1.
一种红褐色金属元素(符号Cu),原子序数29;或其金属。
A reddish-brown metallic chemical element (symbol Cu) with the atomic number 29; also, the metal made up of this element.
- 2.
铜的红褐色。
The reddish-brown colour of copper (etymology 1, noun sense 1).
铜色;一种红褐色金属元素(符号Cu),原子序数29;或其金属。;铜的红褐色。;警察;[化] 铜Cu
用法In use
The wiring in this house is made of copper because it conducts electricity well.
用法提示:copper作名词,指金属铜,在句中作宾语,表示材料。
The copper arrested the thief after a short chase.
用法提示:copper作名词,在英式俚语中意为警察,在句中作主语。
She collected antique copper coins from different countries.
用法提示:copper作名词,指铜币,在句中作定语修饰coins。
be made of copper
copper作为物质名词,不可数。
The statue is made of copper.
这座雕像是由铜制成的。
copper + noun
copper作定语,修饰名词。
They installed copper pipes in the house.
相关词与表达Connections
搭配Collocations
- copper pipe
- 铜管
- The plumber replaced the old copper pipe.水管工更换了旧铜管。
- copper wire
- 铜线
- Copper wire is widely used in electrical applications.铜线广泛应用于电气领域。
- copper mine
- 铜矿
- The town's economy relied on the copper mine.该镇的经济依赖铜矿。
- copper coin
- 铜币
- He collected ancient copper coins.他收集古铜币。
- off-duty copper
- 下班警察
学习提示Learner notes
记忆技巧Memory Tip
copper 中的 'cop' 是警察,警察制服上的铜扣子很显眼,这样记住铜和警察两个意思。
语境与语域Context & Register
铜: 化学、工程、烹饪等正式或技术语境;警察: 非正式口语,多见于英式英语,用于指代警员。
语法说明Grammar Note
作为'铜'不可数,作为'警察'可数。
发音与拼写Pronunciation & Spelling
Words with the same stressed vowel and following consonants: chopper, popper, stopper, topper, and proper all rhyme with /ˈkɒpə/. Be careful: words like 'upper' (/ˈʌpə/) and 'supper' (/ˈsʌpə/) look similar but have a different vowel sound.
用法优先级Usage priority
Collins 词频等级为 2,建议结合例句记忆,而不是只背中文释义。
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Dictionary facts from ECDICT, WIKTIONARY, WORDNET.