checkerboard of colour filters

例句：

1. 1.The checkerboard pattern on the wall is very beautiful.
   墙上的方格图案非常漂亮。
2. 2.They used to play checkers in the park.
   他们过去在公园里玩棋。
3. 3.The checkerboard was a good way to organize the room.
   方格图案是组织房间的好方法。