动词短语 to file away 的意思是把同类文件存档。
All my letters are filed away in a big cabinet in my office.
On Friday mornings I pay the bills and invoices from the past week, then I file them away.
还有一个有趣的俚语表达就是 the circular file。你知道当我们把某物放进 circular file 后，这样东西去哪儿了吗？答案就是废纸篓。
A: What happened to those printouts?
B: Oh, they went in the circular file, sorry. I didn't think you needed them.