Ключевые слова: 10 year old, back, background, boy, caucasian, cheerful, child, childhood, class, classroom, contemporary, cute, desk, education, elementary, emotion, expression, female, flag, foreground, grade, group, happy, horizontal, junior, junior school, kid, learn, learning, lesson, lifestyle, listening, little, male, multiracial, person, primary, pupil, school, schoolchildren, schoolgirl, sitting, smiling, standing, student, study, together, white, youth,