Ключевые слова: 20, android, app, application, background, black, blank, business, camera, cell, cellphone, cellular, communication, computer, device, digital, display, dual, duo, duos, edge, editorial, electronic, equipment, huawei, illustrative, internet, isolated, mate, media, message, mobile, network, phone, pro, screen, smart, smartphone, social, tablet, technology, telephone, touch, touchscreen, web, wireless,