我选定了一份文件，然后按下了删除键。

I selected a file and pressed the delete key.

《柯林斯英汉双解大词典》

他在公文包内搜索一番，取出一份文件。

He rifled through his briefcase and extracted a file.

《牛津词典》

当发送电子邮件时，你还可以把一份文件作为附件发送，该文件可以是图片、程序、或声音文件等。

When you send an e-mail you can also send a file as an attachment and that file can be a graphic, a program, a sound or whatever.

《柯林斯英汉双解大词典》

Gestapo agents intercepted him and demanded he sign a letter saying that at no point had he been threatened or harassed by the Gestapo.

盖世太保们拦住了他,要求他签署一份文件，上面写着,他绝没有受到盖世太保的威胁或骚扰。

耶鲁公开课 - 心理学导论课程节选

To produce this as a pre-scripted document that anybody else could follow?

制作成一份人人都能遵循的,那种预制文件呢

耶鲁公开课 - 聆听音乐课程节选

She told her husband that she had just Xeroxed this thing -she had read what she was Xeroxing -and she told her husband who was a beeper salesman about the news.

她告诉她丈夫说她复印了一份文件,她读了文件的内容,然后告诉了她丈夫,她的丈夫是传呼机销售员

耶鲁公开课 - 金融市场课程节选