flat-slab floor

例句：

1. 1. The architect designed a flat-slab floor for the new officebuilding.
   建筑师为新办公楼设计了一个平铺石板地板。
2. 2. The tiled floor wasworn smooth by years of use.
   经过多年的使用，瓷砖地板变得光滑。
3. 3. The flat-slab floor is easy to cleanand maintain.
   平铺石板地板易于清洁和维护。