柯林斯词典sebum /ˈsiːbəm/ 1. N-UNCOUNT Sebum is an oily substance produced by glands in your skin. 皮脂 返回 sebum剑桥词典an oil-like substance produced by the sebaceous glands in the skin that makes hair shiny and prevents skin from becoming dry 皮脂(皮肤上的皮脂腺产生的一种油性物质,可使头发光泽,预防皮肤变干) 返回 sebum