carbon

• 一种化学元素（符号C），是生命和有机化学的基础，存在于所有生物体以及许多天然和合成材料中；也指碳元素的各种形式，如石墨、金刚石等。

A chemical element (symbol C) that is fundamental to life and organic chemistry, found in all living organisms and many natural and synthetic materials.

不可数

1. B2formalscientific

   A nonmetallic chemical element with symbol C, found in all organic matter and many minerals.

   化学元素

   • Diamonds are a form of pure carbon.
   • Carbon is essential for life on Earth.
   • The scientist measured the carbon content in the sample.

2. Carbon dioxideB1formalscientific

   A gas produced by burning carbon and by breathing, often associated with climate change.

   二氧化碳

   • The factory reduced its carbon emissions by 20%.
   • Plants absorb carbon dioxide from the atmosphere.
   • Carbon footprint measures the impact of human activities on the environment.

   同义词carbon dioxide

3. Carbon copyB1informaltechnical

   A copy of a document made using carbon paper, or an email recipient who receives a copy.

   抄送

   • Please send me a carbon copy of the report.
   • I was put on carbon copy for the email thread.
   • He kept a carbon copy of the contract for his records.

   同义词copyduplicate