Ключевые слова: 2019, 2020, beginning, building, business, businessman, calendar, celebration, change, concept, construction, countdown, crane, creative, date, day, december, design, end, engineering, event, forecasting, future, hoist, holiday, hook, hooking, industrial, industry, lift, lifting, load, man, month, new, number, operator, plan, planning, season, sign, site, start, technology, time, transition, up, work, worker, year,