D-n
[医]dextrose nitrogen ratio 葡萄糖氮比率，糖氮比率
🗣️ 情景例句
Have you ever owned an animal?
你曾养过动物吗？
I've got a slight pain in my teeth.
我的牙有点痛。
We want to order some of these.
我们想订些这种货。