世间万物的存在，必定有其存在的价值和意义，每一个事物的产生必定有其产生的根源，并非凭空而降。

Carbon 碳

古代就已发现，得名于炭(Carbon)。

The notion underlying carbon is probably that of ‘burning’; it has been tentatively traced back to a base *kar- ‘fire’. The word’s immediate source was French carbone, coined in the 1780s on the basis of Latin carbō ‘coal, charcoal’ (supplementing an earlier borrowing charbon ‘coal, charcoal’). It is not certain whether char and charcoal are related to it.

Carbo- 词根碳

carbocation 碳阳离子

carbolic 碳的

carbonate 碳酸盐

carbonize 碳化

carbonyl 羰基

carboxyl 羧基

carbuncle 红榴石，红宝石