boniato

例句：

1. 1. The riverbed is covered with a layer of smooth boniatos.
   河床上铺满了一层光滑的小石子。
2. 2.She carefully placed the boniatos in the flower bed.
   她小心翼翼地将小石子放在花坛里。
3. 3.The path was lined with colorful boniatos that added a touch of natural beauty to the scene.
   小路两旁摆满了色彩斑斓的小石子，为这个场景增添了一抹自然之美。