Ключевые слова: arrow, assemble, assembling, better, build, business, change, choice, circle, closeup, cog, concept, conceptual, connection, construct, construction, contribution, damage, decision, demolition, destroy, destruction, ecologist, emotion, enhance, environmentalist, gear, grow, guidance, improve, industry, innovation, iron, machinery, macro, mechanism, metal, old, opposite, option, product, progress, resource, safety, sign, steel, succeed, teamwork, technology, wheel,