Video PlayerClose
A worker is seen at the construction site of Subway Line 7 in Hangzhou, capital of east China's Zhejiang Province, May 2, 2019, during the Labor Day national holiday. (Xinhua/Huang Zongzhi)
A worker is seen at the construction site of Subway Line 7 in Hangzhou, capital of east China's Zhejiang Province, May 2, 2019, during the Labor Day national holiday. (Xinhua/Huang Zongzhi)