Antipellagra vitamin
[化] 抗糙皮病维生素; 维生素PP
🧩 词语组成解析
🗣️ 情景例句
Oh, Mother. I forgot you still had it.
噢， 妈妈。我忘了你仍然保留着它。
If I want to be healthy,I have to stop smoking cigarettes.
如果我想要健康,我必须停止吸烟。
We'd like you to change shippers for the next order.
下次的货我们希望换一家运输公司。