N,n-diethylnicotinamide
[化] 烟酰乙胺
🗣️ 情景例句
I would like to buy some stamps, please.
我想买些邮票。
A joke never gains an enemy but often loses a friend.
开玩笑总不能化敌为友，反而有时会失去朋友。
How's Jimmy today?
吉米今天怎么样？