A worker works at a construction site on the International Labor Day in Tehran, capital of Iran, on May 1, 2019. (Xinhua/Ahmad Halabisaz)
Int'l Labor Day marked across world
Source：Xinhua| 2019-05-02 10:02:47|Editor: Shi Yinglun
A worker works at a construction site on the International Labor Day in Tehran, capital of Iran, on May 1, 2019. (Xinhua/Ahmad Halabisaz)
