Dmk
[医][=demethylketene]脱甲基乙烯酮
🗣️ 情景例句
Ah, you are an early bird then!
你原来是早起的人。
Could you change my flight date from London to Tokyo?
请你更改一下从伦敦到东京的班机日期好吗？
While they enjoy the comfort and banal luxury of their dwelling,
在享受自己住宅的舒适和庸俗的豪华时，