Ключевые слова: back, background, backpack, bag, books, boy, casual, caucasian, cheerful, childhood, children, colorful, education, elementary, friends, friendship, happy, holding, homework, kid, knowledge, learn, learning, lesson, lifestyle, outdoors, outside, park, people, person, primary, pupil, rucksack, school, schoolboy, schoolchild, schoolchildren, schoolkid, smart, standing, student, study, success, summer, sunny, to school, together, two, young,