Usea nitrogen
[医] 脲氮, 尿素氮
🧩 词语组成解析
[医] 脲, 尿素
🗣️ 情景例句
and the problem is that it's set up primarily for kids to play.
而问题是它主要是让孩子们去玩的。
Check-in time is 8:45.
8点45分办理登机手续。
Jim, is this your football sock?
这是你的足球袜吗？