Pnu
[医][=protein nitrogen unit]蛋白氮单位
🗣️ 情景例句
The council will not permit you to build here.
委员会不会允许你们在这一带搞建筑。
The moon emerged from behind a cloud.
月亮从云后出现。
Where is the rest room, please?
请问洗手间在哪？