copy / save / close a file

复制/保存/关闭文件

Your application will be kept on file.

你的申请书将存档。

The school keeps files on all students.

学校存有所有学生的档案。

I have filled in the form and filed my patent application with the Patent Office.

我填了表，向专利局提交了我的专利申请书。

file the forms alphabetically

把表格按字母顺序归档

file a claim / complaint

提出索赔/申诉

file one's nails

锉指甲