Antipellagra vitamin
[化] 抗糙皮病维生素; 维生素PP
🧩 词语组成解析
🗣️ 情景例句
Well, all your things are inside.
嗯 ，所有的东西都拿进来了。
He is wise that hath wit enough for his own affairs.
聪明的人有足够的才智处理自己的事情。
It is the one world in the Solar System that is most like the Earth.
火星是太阳系里与地球最接近的一颗行星。