Nitrogenation
氮化作用
🗣️ 情景例句
You look very familiar. Have we been introduced before?
你看起来很面熟，我们以前互相介绍认识过吗？
Rose, let me introduce my friend to you.
罗斯，让我介绍一下我的朋友。
Hello, Jim.
你好，吉姆。