Diolefine
[化] 二烯; 二烯属
🗣️ 情景例句
I go to brunch every Sunday.
我每星期天早午餐合吃。
Sound love is not soon forgotten.
爱深难忘。
He's awful!He telephoned me four times Yesterday, and three times the day before yesterday.
他讨厌透了！他昨天给我打了4次电话，前天打了3次。