Ключевые слова: america, american, background, business, campaign, celebrate, celebration, construction, country, democratic, engineer, equipment, event, flag, freedom, hammer, hero, holiday, honour, human, independence, industrial, industry, job, labor, labor day, labour day, liberty, maintenance, manufacturing, mechanic, memorial, men at work, nation, national, patriot, patriotic, patriotism, pride, september 1, service, star, strength, tool, united state, us, us flag, usa, work, worker,