Alkylation

n. 烷化作用, 烷化\\n[化] 烷基化; 烷基取代

🗣️ 情景例句

We've been driving for hours with no gas station in sight.
我们开车开了好久也没有看到一个加油站。
What do you do for relaxation?
你做什么消遣?
However, in recent times the old-age pension has only been paid to the poorest people because there has been an increase in the number of people out of work.189
然而阳近一段时间,老年养老金只付给那些最穷的人,因为失业的人数一直在增长。
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