Ключевые слова: academic, adult, background, boy, cartoon, character, cheerful, child, children, class, classroom, college, concept, cute, design, education, elementary, female, girl, graphic, group, happy, illustration, isolated, job, kid, knowledge, learn, learning, lecture, lesson, male, man, old, people, person, preschool, professor, school, scientist, smiling, student, study, teacher, teaching, together, university, work, young,