Translation of "Pile" in Chinese

We have, literally, a pile of food to eat.

我們有一堆吃的。

There was a neat pile of books in the corner of the room.

房間的角落裏整整齊齊地放著一疊書。

There were some graphic novels mixed into the pile of specialty books on the desk.

书桌上一叠专业书里有几本卡通书混在里面。

Students can take as much food as they want, but there isn’t a tray to pile it onto.

学生可以按需所取，但不提供餐盘

I haven't had time to do the dishes for two days; they are in a pile in the kitchen sink.

這兩天我沒時間洗碗，現在廚房已經堆滿了碗碗碟碟。

- Tom put a bunch of letters on Mary's desk.
- Tom put a stack of letters on Mary's desk.
- Tom put a pile of letters on Mary's desk.

汤姆把一叠信放在玛丽桌上。