Ключевые слова: abstract, access, achievement, ambition, building, business, climbing, clouds, concept, concrete, design, development, direction, dirty, door, enter, entrance, high, hole, idea, interior, journey, key, keyhole, mottled, nature, nobody, old, open, opportunity, process, progress, rise, security, shape, sky, solution, spot, stained, staircase, stairs, steps, success, successful, symbol, up, upstairs, upward, view, way,