档案袋的英语怎么说

2次大中小

档案袋的英文：
file cover

参考例句：

Preservice Teacher/Candidate Assessment: The Evolution ofa Process Portfolio
职前师资评测:档案袋程序评估

file是什么意思：
n. 文件；文件夹；档案；锉刀
v. 把…归档；提出；排成纵队行进

clustering file
聚类文件

The extended attribute file on the mounted file system is corrupt.
装在文件系统上的扩展属性文件已损坏。

To file in the wrong place or order.
把归错档案将档案放置在错误的位置或归档次序出错

a file with two flat surfaces.
有两个扁的面的锉刀。

activate anew; as of an old file.
重新恢愎活力；比如旧锉刀。

cover是什么意思：
v. 遮盖；掩饰；包含；采访；给...保险；顶替
n.. 遮盖物；封面；掩护；保险；借口；餐具

Cover as if with a shroud.
仿佛用覆盖物掩饰着。

To be covered with or as if with fog.
为雾笼罩被或好象被烟雾掩盖

Covering: The fixing of a book cover to the spine and end papers .
上书皮:把书皮粘贴于书和纸上。

Snow covered the mountain. = The mountain was covered with snow.
白雪漫山

A light, padded bed covering.
羽毛被一种轻质且柔软的床罩