Skyscraper window cleaners clean the exterior of Guiyang International Trade Center in Guiyang, southwest China's Guizhou Province, March 15, 2022. The 335-meter-high twin skyscrapers of Guiyang International Trade Center recently saw their first exterior wall cleaning this year. The cleaning, carried out by eight workers, is expected to take about 20 days. [Photo by Ou Dongqu/Xinhua]
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