stack area

例句：

1. 1. The boxes are stacked neatly on the shelves.
   盒子整齐地堆放在架子上。
2. 2. The workers were stacking crates in the warehouse.
   工人们正在仓库里堆放纸箱。
3. 3. The books are stacked in a row on the shelf.
   书整齐地排列在书架上。