Ключевые слова: address, answer, application, background, business, businessman, call, client, communication, company, computer, concept, connect, connection, contact, corporate, customer, cyberspace, digital, email, feedback, global, hand, help, hot line, idea, information, internet, letter, mail, marketing, message, mobile, network, notebook, online, person, push, question, screen, send, service, smart, smartphone, social, support, technology, us, web, website,