Ключевые слова: arbor, arborist, aspen, back, bark, birch, branch, business, canada, cargo, class, cold, commercial, coniferous, cut, cutblock, cuts, day, deciduous, diesel, ecology, eighteen, end, ends, environment, equipment, evergreen, fog, foggy, forest, forester, forestry, harvesting, haul, heavy, highway, impact, industrial, industry, job, log, logger, logging, lumber, mill, mountain, natural, nature, north, northern, paper, pine, production, pulp, rear, resources, rig, road, saw, semi, spruce, sustainable, tail, timber, tractor, trailer, transportation, tree, trees, truck, wheeler, wood, woods, worker, working,