bar-finger sand

例句：

1. 1. The beachis covered in smooth, bar-finger sand.
   海滩上铺满了光滑的、沙粒状的沙子。
2. 2. The engineerused a bar-finger sand tolevel the road.
   工程师用沙砾来平整道路。
3. 3. The construction crew was working ona project that required a lot of sandand gravel.
   施工队正在一个需要大量沙子和砾石的项目上工作。