Ключевые слова: adult, attractive, biracial, book, bookshelf, cheerful, child, childhood, college, composite, copy, copy space, day, digital, digital composite, education, elementary, female, girl, happy, holding, knowledge, learn, learning, library, literature, mixedrace, one person, people, person, portrait, read, reading, school, smiling, space, standing, student, study, studying, textbook, university, world, young,