P.-p. substance
[医] 糙皮病预防物质
🧩 词语组成解析
🗣️ 情景例句
the autograph of somebody who may be famous someday.
将来有可能成名的人的亲笔签名。
Can I do anything for you?
我能不能为您做些什么？
Well done, everyone, and congratulations to the winners.
你们个个表现出色，我谨向获胜者表示祝贺。