D-n ratio
[医] 糖氮比率, D-N比率
🧩 词语组成解析
ratio
['reiʃiəu]
n. 比，比率;比例;系数;
vt. 求出比值，除，使…成比例;将（相片）按比例放大[缩小];
🗣️ 情景例句
It has been raining constantly for two days.
雨连续下了两天。
It's a pen.
是支笔。
Good morning. Can I help you?
早上好！我能帮您什么忙吗？