Ключевые слова: app, background, business, businessman, button, class, communication, computer, concept, course, digital, education, elearning, english, foreign, hand, holding, information, internet, knowledge, language, learn, lesson, male, man, online, people, person, pressing, professional, school, screen, speak, student, study, studying, success, teaching, technology, text, training, university, using, website, word, work, young,