United Nations Secretary-General-designate Antonio Guterres(L, front) takes oath of office at the UN headquarters in New York, the United States, Dec. 12, 2016. (Xinhua/Li Muzi)
United Nations Secretary-General-designate Antonio Guterres(L, front) takes oath of office at the UN headquarters in New York, the United States, Dec. 12, 2016. (Xinhua/Li Muzi)