Antipellagra vitamin
[化] 抗糙皮病维生素; 维生素PP
🧩 词语组成解析
🗣️ 情景例句
I heard the professor of that class is very good.
我听说那个班的教授很好。
My watch is fast and your watch is slow.
我的表快，而你的表慢。
often hampers the full development of a growing personality.
而匆忙的生活常常妨碍个性的全面发展。