Ключевые слова: ancient tree, big tree, big tree ancient tree old tree, big tree growth, big tree material, blue sky, branches, dense big tree, ecology, environmental protection, forest, freshness, grassland, green, green leaves, green tree, growth, hope, lonely big tree, looking up, natural forest, natural scenery, outdoors, sunshine, towering big tree growth, towering tree, tranquility, tree, trunk, vitality,