When it comes to the surface that resembles the two dimensions, such as beach TV or computer screen, ceiling,, grass, the page of a book, table, wall, roof, road, shelf, etc. .
As the two-dimensional surface that looks like Beach, ceiling, Computer or TV Screen,. grass, The page of a Book, Wall, Roof, road, Table, shelf and so on.
When referring to the surface with the two dimensions, such as beach ceiling computer or TV,,,, screen grass the page of a book wall roof,,,, ,,, etc. road table shelf .