Ключевые слова: back, background, beautiful, boy, casual, caucasian, child, childhood, classroom, color, cute, earth, eco, ecology, education, elementary, examining, expression, fun, future, geography, glasses, global, globe, green, happy, international, isolated, kid, knowledge, learn, lesson, looking, male, man, map, one, people, person, planet, portrait, preschool, school, science, student, table, travel, world, young, youth,