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"We should firmly safeguard the rules-based multilateral trading system that is transparent, nondiscriminatory, open and inclusive," Xi said, calling on the G20 to oppose unilateralism and protectionism, and safeguard developing countries' right to and space of development.

According to the president, strengthening the global public health system as well as preventing and controlling the COVID-19 pandemic and other infectious diseases are "the most pressing task of the moment."

At present, both the response to the COVID-19 pandemic and global economic recovery have arrived at a crucial juncture, and economic globalization is facing new opportunities and challenges, Li said.

Openness will be stepped up in areas including trade in goods, trade in services, investment and flow of natural persons, and higher standards will be applied in terms of trade and investment liberalization and facilitation, intellectual property rights protection, trade remedy, e-commerce, government procurement, small and medium-sized enterprises, and economic and technical cooperation.

The exchanges between the two countries have created many "firsts" and played an important exemplary role, Wang added.