Pellagramin
[医] 烟酸
🗣️ 情景例句
He is still unable to express himself in English.
他仍然不能用英语表达自己的意思。
At this moment, I feel agreeable to that.
现在嘛，我不妨赞成它。
It's nothing serious.You'd better have a good rest.
（病情）不太严重。你最好好好休息一下。