柯林斯詞典carbon /?kɑ?b?n/ 1. N-UNCOUNT Carbon is a chemical element that diamonds and coal are made up of. (化學(xué)元素) 碳 返回 carbon劍橋詞典 carbon noun (SUBSTANCE) [ 不可數(shù)或單數(shù)名詞：沒有複數(shù)形式的名詞 ] (symbol C) a chemical element that exists in its pure form as diamond or graphite , and is an important part of other substances such as coal and oil , as well as being contained in all plants and animals 碳 範(fàn)例 They used carbon dating tests to authenticate the claim that the skeleton was 2 million years old .New legislation aims to reduce carbon emissions.The substance was identified as carbon. carbon noun (DOCUMENT) [ 可數(shù)名詞：有複數(shù)形式的名詞 ] a carbon copy (DOCUMENT) 複寫本 返回 carbon