Ключевые слова: agriculture, asia, blue, building, calm, chalk, china, cloud, crop, ecology, field, forest, green, high viewing angle, houses, hunan, jiang yong, motor vehicle, mountain, natural, outdoor, peaceful, plant, playground, red, rural, scenery, shadow, sky, smoke, summer, sunlight, surroundings, the way, tourism, tower, traffic, transport, tree, unmanned, village, white, yellow,