margin /ˈmɑ:dʒin/ n. ［c］ 1.页边空白，边缘：He is on the margin of death. 他处于死亡的边缘［考句］You shouldn’t have written in the margin since the book belongs to the library. 你不该在页边上写字，因为书是图书馆的。 2.余地，余裕: allow a margin of 30 yuan in the monthly budget 每月预算中留有30元；the margin of preference 优惠幅度