Ключевые слова: ball, ballpicker, care, collect, collecting, collector, course, electric, equipment, field, game, gather, gathering, golf, golf course, grass, green, ground staff, landscape, landscaping, lawn, leisure, machine, machinery, maintenance, mow, mower, nature, no people, outdoor, pick, picker, playing field, recreation, sport, summer, tractor, transport, up, vehicle, work,