[U]碳 a simple substance found in a pure form as diamonds, etc. or in an impure form as coal, petrol
英英释义
Noun:
an abundant nonmetallic tetravalent element occurring in three allotropic forms: amorphous carbon and graphite and diamond; occurs in all organic compounds
a thin paper coated on one side with a dark waxy substance (often containing carbon); used to transfer characters from the original to an under sheet of paper
a copy made with carbon paper
carbon的用法和样例：
例句
用作名词 (n.)
Carbon dioxide consists of carbon and oxygen. 二氧化碳是由碳和氧组成的。
He decided to use carbon because it does not melt. 于是，他决定用碳，因为碳不易熔化。
I make a carbon copy of my documents. 我用复写纸复写文件。
She put the carbon paper in the wrong way round. 他把复写纸放反了。
The stick of carbon is often used in an electric arc lamp. 碳精棒常用于电弧灯。
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