Ключевые слова: birthday, bustling, celebration, cement, concrete, construction, dedication, dependability, development, duty, dynamic, efficiency, engineering, equipment, festival, hardworking, heavy, industrial, industrious, industry, infrastructure, innovation, labor day, machinery, mixer, power, productive, progress, safety, site, strength, teamwork, tiedup, truck, urbanisation, utility, vehicle, vibrant, work, yellow,