carbon

🇬🇧/ˈkɑːbən/ 🇺🇸/ˈkɑːrbən/📚 3029 60 3四级六级考研托福雅思高考
Carbon is a chemical element that diamonds and coal are made up of. (化学元素) 碳

noun [专属名词]碳;复写纸;炭精棒;碳纤维

Carbon has a valency of 4.
碳的化合价是4价。

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