flatty

例句：

1. 1.The flatty surface of the road is perfect for skateboarding.
   这条平坦的道路非常适合滑板。
2. 2.The flatty ground was covered in snow.
   这片平坦的土地覆盖着雪。
3. 3.The flatty area is a popular spot for picnics.
   这个平坦的区域是野餐的热门地点。