[] a cardboard or plastic cover for holding loose papers, etc.文件夹；纸夹◆a folder of invoices发票夹➡ picture at file ⨁to keep / put sth in / take sth out of a folder将某物放入／放进文件夹；从文件夹取出某物⨁to close / open a folder合上／打开文件夹 () (in some computer systems) a way of organizing and storing computer files（某些计算机系统中的）文件夹◆Create a new folder for each project.为每一个项目建立一个新的文件夹。◆The program allows you to organize your emails into folders.你能借助这款程序将电子邮件整理到文件夹。◆Click on the files and drag them into the ‘set-up’ folder.点击文件并把它们拖入“设置”文件夹。⨁to create / delete / name / rename a folder创建／删除／命名／重命名文件夹⨁to close / open a folder关闭／打开文件夹square cut folder