我用称之为“四色定理”的四种不同的生动颜色，定义每个二维形状，以强调存在，而没有遵循网格结构。

I used different vivid colors as "Four color theorem" for each 2d shape, which is not following the grid, to emphasize the presence.

youdao

我用称之为“四色定理”的四种不同的生动颜色，定义每个二维形状，以强调存在，而没有遵循网格结构。

I used different vivid colors as "Four color theorem" for each 2d shape, which is not following the grid, to emphasize the presence.

youdao