Allylic
烯丙基的
🗣️ 情景例句
Why don't you want to play?
你为什么不玩？
I'm going to but two gallons.
我要买两加仑。
As Earth-dwellers, we always cherish the hope that we will be visited by little green men and that we will be able to communicate with them.
小绿人来拜访我们，而我们可以和他们交流。