Ключевые слова: auditorium, blackboard, board, chair, chalk, chalkboard, class, classroom, college, conference, desk, desks, education, empty, furniture, hall, indoor, indoors, inside, interior, knowledge, learn, lecture, lesson, modern, nobody, room, school, schoolroom, seat, seminar, student, study, studying, table, teaching, training, university, wall, white, wood,