Ключевые слова: academic, appreciate, background, blur, blurred, blurry, board, bokeh, chair, child, class, classroom, copy, day, desk, education, elementary, empty, exercise, furniture, hall, high, indoor, inside, interior, knowledge, learn, learning, lesson, librarian, meeting, nobody, perspective, research, room, school, seat, space, student, study, studying, table, teaching, training, university, wooden, works, young,