Ключевые слова: accounting, algorithm, area, bicolor, brush, certificate, chart, checkbox, clock, communication, consumption, contactless, conversation, cut, deflation, devices, education, employee, fact, fake, graph, growth, home, hydroelectric, hydroelectricity, icon, interview, job, line, mail, management, messages, mobile, news, organizer, outline, payment, quick, received, report, search, set, time, timer, tips, transparent, triangle, work, yellow,