bilis

例句：

1. 1. The beach was littered with small pebbles.
   海滩上散布着许多小卵石。
2. 2. He carefully placed the cobble in the hole.
   他小心地把卵石放在洞里。
3. 3. The old house had a cobblestone path leading up to it.
   那座老房子有一条鹅卵石铺成的小路通向它。