文件夹的用法和样例：
例句
-
文件夹按顺序放置文件的容器，如档案柜或文件夹
A container, such as a cabinet or folder, for keeping papers in order. -
存文件用的硬纸夹。这些文件夹可恰好放在券宗柜的抽屉内。
Cardboard holder for document, which can fit in the drawer of a filing cabinet. -
我们翻遍了文件夹，怎麽也找不到那封信。
We raked around in the files, but couldn't find the letter. -
把这封信放在主要文件夹中。
Put this letter in the main file.
