Nitrocobalamin
硝钴胺
🗣️ 情景例句
Thanks, dear.
谢谢 ，亲爱的。
Wendy, I'd like you to meet my brother Sam.
温迪，我来向你介绍一下我的兄弟萨姆。
she rang up her daughter and asked for her help in what she described as a little spot of bother.
她只得打电话向女儿求援，说她碰到了一点儿小麻烦。