Ключевые слова: advice, analysis, analyze, associate, background, balance, business, businessman, change, circle, collective, combine, communication, concept, connect, connection, copy space, corporate, diagram, economic, economy, education, environment, exchange, idea, industry, join, link, management, people, person, plan, presentation, relate, relation, relationship, showing, smartphone, social, society, solution, strategy, success, sustain, sustainability, sustainable, teacher, teaching, together, transfer, using,