random rubble fill

例句：

1. 1. The construction site was filled with random rubble fill, making it difficult to access the building.
   施工现场被随机的碎石填充物填满，使得进入大楼变得困难。
2. 2. The engineer carefully removed the random rubble fill from the tunnel, revealing a hidden passageway.
   工程师小心翼翼地从隧道中移除了随机的碎石填充物，露出了一个隐藏的通道。
3. 3. The construction crew used random rubble fill to level the ground and prepare for the next phase of the project.
   施工队使用随机的碎石填充物平整地面，为项目的下一阶段做准备。