Dmk
[医][=demethylketene]脱甲基乙烯酮
🗣️ 情景例句
He is quick-witted.
他反应灵敏。
I ate apples for breakfast yesterday.
我昨天早饭吃的是苹果。
Good, we'll be ordering in just a few days.
很好，两三天内我们就会下订单。