柯林斯词典vellum /ˈvɛləm/ 1. N-UNCOUNT Vellum is strong paper of good quality for writing on. 上等皮紙 返回 vellum剑桥词典a thick , cream-coloured, very high-quality writing paper （用於書寫的）倣犢皮紙，倣羊皮紙 a material used in the past for writing on or for covering a book , made from the skins of young animals , especially cows or sheep （舊時的）犢皮紙，羊皮紙 返回 vellum