Ключевые слова: academic, adult, book, caucasian, cheerful, child, childhood, children, class, concept, day, development, education, elementary, female, girl, give, giving, happy, job, knowledge, learn, learning, male, man, occupation, people, preschool, profession, professional, pupil, school, schoolgirl, smiling, standing, student, study, studying, teacher, teaching, technology, university, wisdom, woman, young,