Diethylidene
[化] 二亚乙基; 2-丁烯
🗣️ 情景例句
What do you think about the shipment?
你对货运是怎么考虑的？
Sob! I didn't mean to kill it. I'm sorry birdie.
呜呜，我无意要杀死你。对不起，小鸟。
Oh, yes. It is mine.
啊，是的！是我的！