flatting

例句：

1. 1. The ground is flat and easy to walk on.
   地面平坦，易于行走。
2. 2. The car was flatted before the race.
   赛车在比赛前被平整过。
3. 3. The floor of the room is flatted with a layer of carpet.
   房间的地板被平整地铺设了一层地毯。