Dmk
[医][=demethylketene]脱甲基乙烯酮
🗣️ 情景例句
We propose a change.
我们建议做一下改变。
No, man. You're the one who blew it.
不，老兄，你才是败事的一个。
No, thanks. It's big, but it isn't heavy. It's light.
不用了，谢谢，是大盒子，但不重。很轻。