have 你 wondered if maybe the 草 has coloring in it? then the cow eats it and the cow has coloring in it and then the coloring from the cow comes off into the 牛奶 and we drink the 牛奶 and the we get that magical coloring in us and then when that 牛奶 comes outa us then the toilet water gets colored and then the WHOLE WORLD GETS COLORED!!!!!!!