Ключевые слова: activity, building, construction, digging, diligence, dirt, early, earth, efficiency, effort, environment, evening, excavation, foundations, framework, gear, ground, hard, has, helmets, industry, laboratory, laborers, landscape, machinery, manual, orange, outdoor, physical, preparation, professional, progress, project, safety, shovels, site, skills, soil, structure, sunlight, sunset, task, teamwork, tools, work, workers, workforce,