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单词 oxygen oxygen bond
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原声例句
化学 Crash Course

Now we only have two more oxygen-based functional groups that we're gonna talk about, These are groups that have internal oxygens bonded directly to carbons.

现在我们只讨论另外两个基于氧的官能团,这些是内部氧直接与碳键合的基团。

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It replaced one of salicylic acid's hydroxyl group — that's an oxygen and hydrogen bonded to a carbon — with an acetyl group, which is two carbons, one double-bonded to an oxygen and the other bonded to three hydrogens.

它用乙酰基取代了水杨酸的一个羟基——氧和氢与碳结合——乙酰基是两个碳,一个与氧双键结合,另一个与三个氢结合。

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