stay pile

例句：

1. 1. The workers are busy fixing the roof to prevent water from leaking into the house.
   工人们正在忙着修屋顶，以防雨水渗入房屋。
2. 2. The old tree was used as a post for marking the boundary of the land.
   这棵老树被用作标记土地边界的桩子。
3. 3.The builders were using wooden posts to support the weight of the new building.
   建筑工人正使用木桩支撑新建筑物的重量。