Actually it's a butene derivative because it has that double bond.
实际上它是一种丁烯衍生物, 因为它有双键。
单词 | butene |
例句 |
原声例句
Crash Course 综合篇 Actually it's a butene derivative because it has that double bond. 实际上它是一种丁烯衍生物, 因为它有双键。 |
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