栈

例句：

1. 1.The engineer stacked the boxes on top of each other to make a tower.
   工程师把箱子叠在一起做成了塔。
2. 2. The books were stacked neatly in the shelves.
   书整齐地放在书架上。
3. 3. The artist used stacks of paper to create his masterpiece.
   艺术家用一堆堆的纸来创作他的杰作。