Ключевые слова: antique, asia, background, blackboard, blue, blur, book, bookshelf, business, classroom, closeup, college, concept, conceptual, desk, earth, education, elementary, environment, geography, global, globe, green, gripping, information, interior, international, learn, library, map, notepad, object, ocean, pen, planet, protect, read, room, school, sea, shape, shelf, sphere, textbook, touch, travel, wood, wooden, world, writing,