Nitrogenation
氮化作用
🗣️ 情景例句
But his teeth hurt, and he just can't get to sleep, poor dear.
但他的牙疼， 他不能入睡， 可怜的小宝贝。
Excuse me I couldn't see you.
对不起我不能去看你。
No human endeavor or thought would be unchanged by it.
任何人类的努力和想法都会发生变化。”