I selected a file and pressed the delete key.

我选定了一份文件，然后按下了删除键。

《柯林斯英汉双解大词典》

He turned the pages of a file in front of him.

他翻着面前的一份档案。

《柯林斯英汉双解大词典》

He rifled through his briefcase and extracted a file.

他在公文包内搜索一番，取出一份文件。

《牛津词典》

And the file says workers responsible for boating and beach safety may be doing a better job of warning people when sharks are seen.

VOA: special.2009.06.16

So as the particles on the disk that get the current in the read/write head moving put together millions of these magnetized segments and you've got a file.

通过读写头你就可以得到每个粒子的极性,如果把这些上百万粒子的信息,汇聚要一起就够成了一个文件。

哈佛公开课 - 计算机科学课程节选

The bits are still there, much like bits are still left when you erase a file on your hard disk but they're forgotten about.

二进制数还在那里，就像你在硬盘上删除一个文件,二进制还在那里,但是它们被遗忘了。

哈佛公开课 - 计算机科学课程节选

ReDigi asks users to download proprietary software, which verifies if a file was bought legally.

BBC: US court to rule on ReDigi's MP3 digital music resales

The company asks users to download proprietary software, which verifies if a file was bought legally.

BBC: Redigi screengrab

Each maintains a file of information on you believed probative of your credit worthiness.

FORBES: Manage Your Credit