Usea nitrogen
[医] 脲氮, 尿素氮
🧩 词语组成解析
[医] 脲, 尿素
🗣️ 情景例句
I beg your pardon.
对不起。
I thought he could design the most beautiful department store, but...
我想他能设计出最漂亮的百货商场，不过……
There are many different varieties of bee.
有很多不同种类的蜂。