Ключевые слова: arborist, bark, blade, branch, chain, chainsaw, climber, climbing, construction, cut, cutter, danger, engine, environment, equipment, forest, forestry, furniture, hardhat, harness, industry, log, logs, lumber, lumberjack, machine, man, nature, occupation, outdoor, park, pile, professional, protection, rope, safety, saw, sawdust, sawing, sharp, stack, surgeon, timber, tool, tree, trunk, wood, woodcutter, work, worker,