Nitrocobalamin
硝钴胺
🗣️ 情景例句
I had a wonderful being with you.
和你们在一起，我度过了美好的时光。
An old physician,and a young lawyer.
医生老的好，律师年轻的好。
What can I eat? asked Mrs Brown.
“吃什么才行呢？”布朗夫人问。