square and flat panel

例句：

1. 1.The room is square and has four walls.
   这个房间是方的，有四堵墙。
2. 2. The square is the center of the city.
   这个广场是城市的中心。
3. 3.The square was packed with people waiting for the parade to start.
   广场上挤满了等待游行开始的人群。
4. 1. The floor is flat and easy to clean.
   地板是平的，容易清洁。
5. 2. The roof is flat and can be easily repaired.
   屋顶是平的，可以很容易地修复。
6. 3. The flat is spacious and well-lit.
   公寓宽敞且光线充足。