Ключевые слова: academic, background, black, blackboard, board, bright, chair, chalk, chalkboard, class, classroom, college, curtain, desks, education, educational, empty, furnishings, furniture, group, indoors, inside, interior, knowledge, learn, lecture, lesson, nobody, room, school, schoolroom, seat, seminar, sitting, square, study, table, training, university, wall, white, windows, wood, wooden, work,