His tough rhetoric on the US and softened rhetoric on China, especially compared with his predecessor Aquino III, has worried many in the US

"It was true during the first 30 years of China's opening-up while China was attracting foreign investment, pollution was an issue," he said

Professor Chang is a Co-Director of the Tumor Virology Laboratory at the University of Pittsburgh Cancer Institute

The two countries must promote cooperation in many areas, but how can cooperation go well if our next generation doesn't understand Chinese?" Cho asked

In the urban area of Hefei, there is a hill called Dashu Hill