stack arms

例句：

1. 1.The workers stacked the boxes to make room for more supplies.
   工人们把箱子堆叠起来以便存放更多的物资。
2. 2. The shelves were stacked with books and toys.
   书架上摆满了书和玩具。
3. 3. The mountain was stacked with snow, making it difficult to climb.
   山上堆满了雪，使得攀登变得困难。