Definition: a large amount of something Level: C2
我有一大堆工作要做。
I've got ___mountains of work to do.
去年公司产生了一大堆纸质文件。
The company generated a ___mountain of paper last year.
但我不得不起来处理桌上堆积如山的文件。
But I had to get up to deal with a ___mountain of documents on my desk.
