Usea nitrogen
[医] 脲氮, 尿素氮
🧩 词语组成解析
[医] 脲, 尿素
🗣️ 情景例句
It was about caring.
谈到关心。
Is the plane leaving?
飞机要起飞了吗？
The box is heavy. Can you carry it?
这个箱子很重，你能搬动吗？