Ключевые слова: business, cable, class, classroom, close up, college, computer, desk, education, electrical, empty, engineering, exam, friends, group, hands, happy, hard, help, high, indoors, internet, knowledge, lab, laboratory, laptop, last, learning, people, programmer, projector, research, room, school, science, sitting, small, student, students, study, studying, support, technology, training, university, using, worker, working, young,