D-n
[医]dextrose nitrogen ratio 葡萄糖氮比率，糖氮比率
🗣️ 情景例句
English is the language of aviation.
英语是航空语言。
May I have your name, please?
请问你叫什么名字？
I had no sooner got back to the kitchen than the doorbell rang loud enough to wake the dead.
我刚回到厨房，门铃又响了起来，响声足以把死人唤醒。