carbon
n. 碳; 复写纸
Carbon is a chemical element that diamonds and coal are made up of.
A carbon is a sheet of carbon paper.
He inserted the paper and two carbons.
他放入了那张纸和两张复写纸。
1. an abundant nonmetallic tetravalent element occurring in three allotropic forms: amorphous carbon and graphite and diamond; occurs in all organic compounds
2. 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
3. a copy made with carbon paper
Charcoal and diamond are allotropes of carbon.
木炭和金刚石都是炭的同素异形物
One theory about the existence of extraterrestrial life rests on the presence of carbon compounds in meteorites.
地球外存在生命的理论是基于陨星上存在碳化合物质这一事实的.
Diamonds are pure carbon.
钻石是纯净的碳.
The heavy traffic tinctures the air with carbon monoxide.
繁忙的交通使空气里充满一氧化碳.
Carbon dioxide is the largest contributor to the greenhouse effect.
二氧化碳太多是道致温室效应的最主要原因.