It has been a decade since China received the last batch of food aid from the United Nations World Food Program and began to play an increasingly bigger role in making donations to the world's largest humanitarian agency fighting hunger worldwide.Last year, the Chinese government pledged 6 million U.S. dollars to assist 1.3 million people impacted by the Ebola virus outbreak in most-affected countries in West Africa.That made China one of the leading donors for the WFP operation.So how has China successfully shifted its role from a WFP recipient to a donor?And through what way can China contribute more to those in need?