laying arch by sections and rings

例句：

1. 1.The engineer laid the foundation for the new building.
   工程师为新建筑打下了基础。
2. 2.The team laid down the plan for the project.
   团队制定了项目的计划。
3. 3. The carpenter laid the wood for the shelves.
   木匠为架子铺好了木材。