Old roads used to be paved with round stones to help the horses to walk easily.旧时的道路常用圆石铺路面,使马匹易于行走.The floor holding pen shall be paved with impervious materials and have good drainage.地面应采用不渗透材质铺设,排水良好.May all your day...

be paved with的音标：...

（路面等）以…铺成...