Ключевые слова: background, board, business, chair, class, classroom, college, covid19, design, desk, disease, distance, education, educational, elementary, empty, furniture, high, highschool, illness, indoor, inside, interior, knowledge, learn, lecture, lesson, modern, no people, nobody, pandemic, prevention, pupil, room, row, school, schoolroom, seat, seminar, study, table, teaching, training, university, wall, white, white board, wood, wooden,