precast hollow concrete block

例句：

1. 1. The construction crew used precast concrete blocks to build the foundation of the new bridge.
   施工队使用预制混凝土块建造了新桥的基础。
2. 2.The engineer recommended using precast concrete blocks for the structural integrity of the building.
   工程师建议使用预制混凝土块来保证建筑的结构完整性。
3. 3. The precast concrete blocks were delivered to the construction site on time, ensuring a smooth progress of the project.
   预制混凝土块按时送达施工现场，保证了项目的顺利进行。