carbon
US /ˈkɑːr.bən/
UK /ˈkɑːr.bən/
1.
炭素
a nonmetallic element that has four valence electrons, readily forming covalent bonds, and is the basic constituent of all organic compounds, occurring in all known life forms.
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Diamonds are a form of pure carbon.
ダイヤモンドは純粋な炭素の一種です。
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Plants absorb carbon dioxide from the atmosphere.
植物は大気から二酸化炭素を吸収します。
2.
カーボン紙
a piece of carbon paper.
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Make sure to put a carbon between the sheets for a copy.
コピーのためにシートの間にカーボン紙を挟んでください。