Ключевые слова: action, activity, backhoe, building, bulldozer, clay, clouds, cloudy, construction, copy, czech, deep, dig, digger, digging, dirt, dotation, earth, ecology, engineering, equipment, european, excavation, excavator, heavy, horizontal, hydraulic, industrial, industry, infrastructure, machine, machinery, nobody, orange, ploughshare, project, republic, sand, side, space, steel, transport, transportation, trench, tube, union, vehicle, village, work, yellow,