Ключевые слова: background, book, business, businessman, classroom, coach, cognition, communication, computer, concept, connection, course, cyberspace, development, digital, education, elearning, electronic, hand, information, internet, knowledge, laptop, learn, learning, lesson, man, modern, network, office, online, person, school, screen, seminar, student, study, studying, teaching, technology, training, university, virtual, web, webinar,