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BEIJING, March 3 (Xinhua) -- China's top political advisor Yu Zhengsheng Monday pledged to further efforts to contribute to the deepening of the country's reforms in a comprehensive manner.

The new round of the Iranian nuclear talk is faced with difficulties, and the constructive atmosphere doesn't come easy, all sides should promote the talks positively, said Li, who is also China's vice foreign minister. He also urged Iran to take substantive steps to curb its nuclear program, while the six major powers should ease relevant sanctions in return.

"The Chinese people are paying great attention to you," he told the delegates, noting that they traveled a long journey to this Russian resort city for the event during the Spring Festival.

They agreed to start preparation early for new round of Strategic and Economic Dialogue -- scheduled for China this summer -- and Consultation on People-to-People Exchange, promote an early signing of a bilateral investment agreement, and try to build a mechanism to inform each other about major military actions.

China-Africa trade reached 210.2 billion dollars in 2013.