spattle

例句：

1. 1.The river flows over the smooth pebble beach.
   河流流过光滑的卵石海滩。
2. 2. The old house sits on a cobblestone street.
   这座老房子坐落在鹅卵石街道上。
3. 3. The gravel path leads to the cliff's edge.
   砾石小径通向悬崖的边缘。