pile-planking

例句：

1. 1. The workers are busy piling up the sandbags.
   工人们正在忙着堆叠沙袋。
2. 2.They plan to spend the weekend in a nearby town.
   他们计划周末去附近的一个城镇。
3. 3.The children were playing with their toys on the floor, piling them up neatly.
   孩子们在地上玩他们的玩具，把它们整齐地堆起来。