Cobaltamine
[化] 钴胺素; 维生素B12
🗣️ 情景例句
Take your medicine like a man.
做一个男人，去接受磨练吧！
She asked me which one I'd like, and I said I didn't mind.
她问我要哪一个，我说哪一个都没有关系。[动词时态一致，这是中国人学习英语最头痛的一个问题。]
Good, we've been waiting a long time.
好，我们已经等好久啦。