Photo taken on May 2, 2019 shows workers working at the construction site of a rail transit program in Kunming, Southwest China’s Yunnan province, during the Labor Day national holiday.[Photo/Xinhua]
Photo taken on May 2, 2019 shows workers working at the construction site of a rail transit program in Kunming, Southwest China’s Yunnan province, during the Labor Day national holiday.[Photo/Xinhua]
Photo taken on May 2, 2019 shows workers working at the construction site of a rail transit program in Kunming, Southwest China’s Yunnan province, during the Labor Day national holiday.[Photo/Xinhua]
Photo taken on May 2, 2019 shows workers working at the construction site of a rail transit program in Kunming, Southwest China’s Yunnan province, during the Labor Day national holiday.[Photo/Xinhua]