Chinese President Hu Jintao left Toronto, the largest city of Canada, on Sunday for home after attending a Group of Twenty (G20) summit, which was aimed at securing the global economic recovery and addressing the economic challenges and risks.

At the Toronto summit, President Hu and other leaders of G20 members discussed a wide range of issues, including the world economic situation, the European debt crisis, "the Framework for Strong, Sustainable and Balanced Growth," the reform of the international financial institutions, the world trade and the strengthening of financial regulation.

The Chinese leader delivered a speech at the summit, elaborating on China's propositions on how to meet the economic challenges, and how to make the world economic growth strong, sustainable and balanced.

"The deeper impact of the international financial crisis is yet to be overcome and systematic and structural risks in the world economy remain very serious," President Hu said in his speech.

"We must fully recognize the gravity and the complexity of the deep impact of the international financial crisis and continue to work in a spirit of unity and win-win progress to bring about strong, sustainable and balanced world economic growth at an early date," he said.

On the sidelines of the summit, Hu met several leaders of G20 members, including those of Indonesia, Russia, the United States, Britain, Japan and South Korea.

Before attending the summit, Hu paid a state visit to Canada, his second as head of state in five years. Hu met Canadian Governor-General Michaelle Jean and Prime Minister Stephen Harper and exchanged views with them on the development of China-Canada relations and major world and regional issues of mutual interest.

During Hu's visit, the two sides reaffirmed their commitment to the development of the China-Canada Strategic Partnership. Both sides agreed to work together to increase bilateral trade to 60 billion U.S. dollars by 2015.

The Chinese side announced that a China Cultural Center will be established in Canada. The two countries signed a number of cooperation documents during Hu's visit.

In his speech at a banquet hosted by Prime Minister Harper, President Hu called for the promotion of the all-round development of the China-Canada strategic partnership.

He also made proposals for expanding bilateral economic and trade cooperation, promoting two-way investment, deepening cooperation in the areas of energy and resources, advancing cooperation in new areas and opposing all forms of protectionism.