lopite

例句：

1. 1. The river flows over smooth pebbles.
   河流流过平滑的卵石。
2. 2. The path is lined with neatly arranged pebbles.
   小路两旁整齐排列着卵石。
3. 3.The rocks are covered in a layer of smooth pebbles.
   岩石上覆盖着一层光滑的卵石。