Conversion of olefines
[建] 烯烃的转化
🧩 词语组成解析
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
(olefine 的复数) [化] 烯烃; 链烯烃
🗣️ 情景例句
We have a baby now.
我们现在有一个小宝宝了。
Poverty is not a crime.
贫非罪。
That sounds interesting. That was a hundred years ago, wasn't it?
听起来很有意思。那是一百年前的事了，不是吗？