Dienes
[化] 双烯; 二烯烃
🗣️ 情景例句
What's bugging you?
你正烦什么？
It is too late to come with the water when the house is burnt down.
马后炮。
This is last order we will be placing for a while.
这是最后一次下订单，我们暂时不再订货了。