Ключевые слова: background, binary, business, businessman, calling, cell, cellphone, chatting, communication, cyber, design, device, digital, electrical, electricity, energy, finance, flow, hologram, leader, light, man, millennial, mobile, mobile phone, network, office, online, order foodleadership, person, phone, polygon, portrait, professional, salesman, science, smart, smart phone, smartphone, system, talk, talking, tech, technical, technology, telephone, using, using phone, virtual, web,