Dmk
[医][=demethylketene]脱甲基乙烯酮
🗣️ 情景例句
She called to say the plane was delayed.
她打电话回来， 告诉我们飞机误点。
The nearer the bone the sweeter the flesh.
骨肉越亲，恩情越深。
I'm very pleased with your work.
我对你的工作非常满意。