Justin Forsyth, Deputy Executive Director of the United Nations Children's Fund (UNICEF), poses for a photo in his office in New York, the United States, Nov. 15, 2017. The World Children's Day, which falls on Nov. 20, will be another chance to unite the whole world to highlight the topic of children, Justin Forsyth said in an exclusive interview with Xinhua. (Xinhua/Li Muzi)