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TOEFL IELTS BNC: 3062 COCA: 3004

carbon

noun
 
/ˈkɑːbən/
/ˈkɑːrbən/
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  1.  
    [uncountable]
    (symbol C)
    a chemical element. Carbon is found in all living things, existing in a pure state as diamond and graphite.碳
    • carbon fibre碳纤维
    • iron with a high carbon content碳含量高的铁
    Topics Physics and chemistryb2
    Oxford Collocations Dictionaryadjective
    • pure
    • organic
    • radioactive
    • …
    carbon + noun
    • content
    • atom
    • isotope
    • …
    phrases
    • a form of carbon
    See full entry
  2.  
    [uncountable] used when referring to the gas carbon dioxide in terms of the effect it has on the earth’s climate in causing global warming碳（指导致全球变暖的二氧化碳气体）
    • carbon emissions/levels/taxes碳排放；碳水平；碳税
    • (British English) How do we move to a low-carbon economy?我们如何转向低碳经济？
    see also zero-carbonTopics The environmentb2
    Oxford Collocations Dictionaryadjective
    • pure
    • organic
    • radioactive
    • …
    carbon + noun
    • content
    • atom
    • isotope
    • …
    phrases
    • a form of carbon
    See full entry
  3. [countable]
    (also carbon copy)
    a copy of a document, letter, etc. made with carbon paper复写纸
  4. [countable]
    (also carbon copy)
    a person or thing that is very similar to somebody/something else极相像的人；极类似的事物
  5. [countable] a piece of carbon paper复写纸
    6. Word Originlate 18th cent.: from French carbone, from Latin carbo, carbon- ‘coal, charcoal’.

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