Ключевые слова: 2021, air, american, banner, buildings, business, businessman, caucasian, chain, change, city, development, drag, eco, ecology, ecosystem, effort, energy, entrepreneur, environment, european, hispanic, holding, improvement, infrastructure, job, male, man, modern, new, number, occupation, outdoors, person, planning, pollution, problem, professional, progress, pull, renewable, save, skyscraper, standing, struggle, success, sustainable, worker, year, young,