Pnu
[医][=protein nitrogen unit]蛋白氮单位
🗣️ 情景例句
Seven letters ... two words ...
七个字母……两个字……
If you believe that, then you must be out of your mind.
你如果相信它的话，那你一定是你头脑发昏了。
I think you probably know China has adopted a flexible policy in her foreign trade.
我想你也许已经了解到中国在对外贸易中采取了灵活的政策。