Pnu
[医][=protein nitrogen unit]蛋白氮单位
🗣️ 情景例句
This weekend, I can't wait.
这个周末，我已等不及了。
He is also very fond of playing tennis and manages to find time for a game twice a week.
他非常喜欢打网球，每周总要抽时间打两次。
Foreign countries can send their programmes to the other side of the world.
外国一些国家能把它们的节目传送到中国。