Ключевые слова: active, activity, american, appearance, backpack, boy, casual, cheerful, children, cognition, college, communication, discussion, emotion, entertainment, european, friends, friendship, fun, girl, group, happiness, joyful, leisure, lifestyle, male, modern, outdoor, people, person, positive, primary, school, schoolchildren, schoolgirl, serious, smiling, student, summer, teen, teenage, togetherness, town, university, walk, walking, workbook, young, youth,