Chinese schoolkids pick up garbage from parks and public surfaces around the Blok 70 neighborhood in Belgrade, Serbia, on May 1, 2019, the International Labor Day. (Xinhua/Nemanja Cabric)
Chinese schoolkids pick up garbage to mark Int'l Labor Day in Belgrade, Serbia
Source: Xinhua| 2019-05-02 07:54:55|Editor: Shi Yinglun
