A Chinese doctor talks to children during physical examination at an orphanage on the outskirts of Lusaka, capital of Zambia, June 1, 2013. Some 20 Chinese teachers, doctors and engineers celebrated the Children's Day with 60 orphans in Lusaka. (Xinhua/Mu Dong)

A Chinese doctor talks to children during physical examination at an orphanage on the outskirts of Lusaka, capital of Zambia, June 1, 2013. Some 20 Chinese teachers, doctors and engineers celebrated the Children's Day with 60 orphans in Lusaka. (Xinhua/Mu Dong)

He Yi, dean of the Confucius Institute in Zambia, hands out books introducing Chinese culture to children at an orphanage on the outskirts of Lusaka, capital of Zambia, June 1, 2013. Some 20 Chinese teachers, doctors and engineers celebrated the Children's Day with 60 orphans in Lusaka. (Xinhua/Mu Dong)