Olefine
[化] 烯烃; 链烯烃
🗣️ 情景例句
There is no one here by that name.
这里没有玲玲这个人。
I hope you bring his quitar with him.
我希望你带他的吉他一起来。
Who was second? Who was third?
谁是第二？谁是第三？