Ключевые слова: air balloon, back to school, beautiful, beginning, bouquet, boys, cadets, cheerful, child, childhood, children, clothes, crowd, dress, education, elementary, elementary school, event, female, first, first class, flower, girl, girls, group, happiness, happy, holiday, kid, knowledge, knowledge day, learn, lesson, male, parent, people, photo, pupil, pupils, school, schoolboy, schoolgirl, schoolgirl september, small, smile, smiling, solemn line, solemn ruler, uniform, young,