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United Nations Secretary-General Antonio Guterres addresses a memorial tribute to Kofi Annan, the 7th Secretary-General of the United Nations, at the UN headquarters in New York, on Sept. 21, 2018. (Xinhua/Li Muzi)
United Nations Secretary-General Antonio Guterres addresses a memorial tribute to Kofi Annan, the 7th Secretary-General of the United Nations, at the UN headquarters in New York, on Sept. 21, 2018. (Xinhua/Li Muzi)