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
I've never heard such a pile of crap in my life!
我这辈子从来没听过如此胡说八道！
An empty purse frightens many friends.
曩中无分文，亲友不上门。
Not to grasp firmly is not to grasp at all.
抓而不紧等于不抓。