a folding cover or holder, typically made of stiff paper or card, for storing loose papers
(尤指硬纸或纸板制的)文件夹,纸夹。
an icon on a computer screen which can be used to access a directory containing related files or documents
(计算机)文件夹图标。
〈北美〉 折叠式传单(或小册子)。