Ключевые слова: altitude, blue, bucket, building, business, clean, cleaner, climb, danger, dangerous, glass, grid, group, hat, high, highrise, job, korea, labor, maintenance, men, modern, occupation, office, outside, people, property, reflect, reflection, risk, rope, safety, seoul, service, sky, skyscraper, structure, teamwork, tower, wash, washer, window, wipe, wiper, worker, working,