Ключевые слова: adult, bark, blade, chain, chainsaw, chop, construction, cut, danger, equipment, firewood, forest, forestry, hand, handbook, horizontal, industrial, job, log, lumber, lumberjack, machine, male, man, nature, occupation, outdoors, person, pine, plant, power, profession, professional, safety, saw, sawdust, sharp, slice, technology, timber, tool, tree, trunk, wood, woodcutter, wooden, worker, working,