uncrushed gravel

例句：

1. 1. The road was paved with uncrushed gravel.
   这条路是用未压碎的碎石铺成的。
2. 2.The builders used uncrushed gravel to level the ground.
   建筑工人用未压碎的碎石来平整地面。
3. 3. The construction crew was working on a project that involved using uncrushed gravel.
   施工队正在参与一个项目，该项目需要使用未压碎的碎石。