Usea nitrogen
[医] 脲氮, 尿素氮
🧩 词语组成解析
[医] 脲, 尿素
🗣️ 情景例句
The world's greatest grandmother, Mrs. Ellen Stewart,
世界上最伟大的祖母， Ellen Stewart太太，
He cut his finger because he was careless.
他不小心割破了手指头。
Was all the material in that case destroyed?
箱里的东西都毁了吗？