Ключевые слова: book, boy, brothers, caucasian, cheerful, child, childhood, counting, curious, cute, desk, drawing, education, educational, elementary, face, friends, handsome, happy, home, homework, horizontal, indoor, kid, knowledge, learn, lifestyle, little, male, mathematics, people, portrait, positive, preschool, preschooler, primary, pupil, room, school, schoolboy, schoolchild, schoolkid, siblings, smiling, student, studying, twins, two, white, writing, young, youth,