D-n
[医]dextrose nitrogen ratio 葡萄糖氮比率，糖氮比率
🗣️ 情景例句
my grandfather is
我爷爷
The world is a ladder for some to go up and some down.
人间犹如一架梯，有人缘梯上升，有人顺梯下降。
If she finds out you spilled ink on her coat, she'll blow her stack.
如果她发现你在她上衣上洒了墨水，她会大发脾气的。