Etiocobalamin
[化] 维生素B12P; 本钴胺
🗣️ 情景例句
Thanks, John. You really go out of the way to make me feel welcome. Thanks you very much.
约翰，谢谢你。你真是煞费心思来让我感受到欢迎。谢谢你！
No, man. You're the one who blew it.
不，老兄，你才是败事的一个。
I'm an engineer.
我是工程师。