Korean flag's foundation is white.
~> The Korean flag's main color is white.

In center,a circle have red and blue color.
~> In the center, the circle has red and blue colors.

In left up,have 3 line, and left down have 4 line.
~> The upper left corner has 3 lines and the lower left corner has 4 lines.

And In right up have 5 line, and right down have 6 line.
~> The upper right corner has 5 lines and the lower right corner has 6 lines.

I like   Korean Flag!
~> I like the Korean Flag!

                     The Korean flag's main color is white. In the center, the circle has red and blue colors. The upper left corner has 3 lines and the lower left corner has 4 lines. The upper right corner has 5 lines and the lower right corner has 6 lines. I like the Korean Flag!