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Xi also called on the G20 to play a leading political role in nurturing favorable conditions for international trade, and urged the G20 to inject political impetus into international cooperation on jointly tackling climate change.

China and the island countries have been good friends, partners and brothers regardless the change of international situations, Xi said.

In Hall's eyes, China's further opening-up will introduce more innovations for children into the Chinese market, help local businesses think differently and bring up more new solutions to better meet the needs for children around the world.

Oversight over centrally-administrated companies, Party chiefs and presidents of colleges and universities is also being strengthened, he said.

The union said the scientific and technological circles of China would, as always, stick to scientific and academic ethics and related international rules, and promote social development and human progress through innovative scientific research.