Michael Moller, director-general of the UN Geneva office

Moller hailed China's role in supporting multilateralism, saying China can take the lead in addressing global challenges ranging from climate change to possible misuse of new technologies.

Moller was impressed with China's development, saying he thinks the country can share its best practices with others. Praising China's policies supporting multilateralism and free trade, he said there is a "good, continuous and strong" relationship between the UN Office at Geneva and China.

"The world today has never been better. In the whole history of mankind, a big part of the reason for that is multilateralism works," he noted, calling on countries to bring back multilateralism to what it is and should be.