Ключевые слова: amazing, background, beautiful, blue, china, color, colorful, destination, dusk, erosion, famous, gansu, geography, geological, geology, gully, hill, hilly, land, landscape, mountain, national, nature, orange, park, place, rainbow, red, rock, sandstone, scenery, scenic, shape, shine, sightseeing, sky, sunset, tourism, tourist, travel, twilight, view, yellow, zhangye,