A few purple leaves. fallen on the surface of blue waterA few purple leaves. fallen on the surface of blue water
Macro photography of a broken twig with leaves and dried berries that fell to the surface of the waterMacro photography of a broken twig with leaves and dried berries that fell to the surface of the water
The heavenly expanse spread out over the water surfaceThe heavenly expanse spread out over the water surface
В математике: граница, отделяющая геометрическое тело от внешнего пространства. Наружная сторона чего-н..