Nicotinamide
n. 烟酰胺\\n[化] 烟酰胺; 尼克酰胺; 抗糙皮病维生素; 维生素PP
🗣️ 情景例句
John isn't here today. That figures, he looked very sick yesterday.
约翰今天没有来，怪不得，他昨天就好像不太舒服。
I'm a student.
我是学生。
What colour is it?
是什么颜色的？