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
So, what were you two talking about?
你们俩刚才谈什么了？
It's very cold outside.
外面非常寒冷。
Look out! There is a car coming.
小心，车来了。