noun文件盒,文件夹;(电脑)文件,文档, 档案 ;锉,锉刀;一路纵队
verb把…存档,归档;排成一行行走;锉平,锉光滑
nouna box or folded piece of card for keeping papers in
nouna collection of information that is stored in a computer and that has a particular name
nouna tool with rough sides that you use for making things smooth
nounin a line with each person following the one in front
verbto put papers in their correct place, for example in a cover or a box
verbto walk in a line, one behind the other
verbto make something smooth using a tool with rough sides