Ключевые слова: boy, casual, child, childhood, children, class, classroom, copy space, cropped, cute, day, desk, desks, education, elementary school, ethnic, ethnicity, female, girl, indoor, indoors, informal, inside, kid, kids, learn, learner, learners, lecture, lesson, little, looking, male, natural, primary school, pupil, real, room, school, sitting, small, smart, student, students, study, table, teacher, tired, young, youth,