Protein nitrogen
[化] 蛋白质氮\\n[医] 蛋白氮
🧩 词语组成解析
protein
['protin]
n. [化]朊，蛋白（质）;
adj. 蛋白质的;
🗣️ 情景例句
Do you?
你会吗？
Mr. Smith is still in his forties.
史密斯先生才四十几岁。
Not at all. It was a pleasure!
不客气。那样我很高兴。