paper-pile

例句：

1. 1. 堆
   堆积
2. 1. The old man was sitting on the paper-pile, reading a book.
   那位老人坐在纸堆上，正在看书。
3. 2. She carefully stacked her papers in the paper-pile.
   她小心翼翼地将文件堆放在纸堆里。
4. 3. The children were playing with their paper-pile, creating beautiful pictures.
   孩子们正在用他们的纸堆玩耍，创作美丽的图画。