sandpaper
英 [ˈsændpeɪpə(r)] 美 [ˈsændpeɪpər]
n. 砂纸v. 用砂纸打磨
牛津词典
noun
砂纸
strong paper with a rough surface covered with sand or a similar substance, used for rubbing surfaces in order to make them smooth
verb
用砂纸打磨
to make sth smooth by rubbing it with sandpaper