Ключевые слова: alarm clock, back, background, blue, book, books, class, color, concept, continent, desk, earth, education, equipment, geo, geography, global, globe, globus, history, home desk, knowledge, learn, learning, literature, map, marker, objects, pen, pencil, ready, retro, school, science, scissors, sphere, student, study, studying, symbol, table, topography, travel, university, vintage, wall, wisdom, wooden, world,