sandy gravel

例句：

1. 1. Thebeach was littered with sandy gravel.
   海滩上满是沙砾。
2. 2. Theroad was covered in sandy gravel.
   这条路上铺满了沙砾。
3. 3. The old house was surroundedby sandy gravel.
   那所老房子周围都是沙砾。