In a fragmented world that needs to fix deficits in peace, development and governance, China's visions, proposed by President Xi Jinping at the 19th G20 Summit, of building a just world of common development and promoting a fair and equitable global governance system are of great relevance to making the world a better place, according to analysts.  The G20 Summit, hosted by Brazil in Rio de Janeiro on Monday and Tuesday, took place amid shifting geopolitical dynamics and economic uncertainty, providing an opportunity for world leaders to get together to discuss solutions to address urgent global challenges, including economic stagnation, trade disruptions, food security, reform of multilateral institutions and climate governance.  As leader of the second-largest economy and the largest developing country in the world, Xi's attendance and his interactions with other leaders at the summit were in the spotlight.  Addressing the summit, he outlined China's eight actions to support global development, including pursuing high-quality Belt and Road cooperation, implementing the Global Development Initiative, supporting international cooperation on poverty reduction and food security, and supporting the G20 in carrying out practical cooperation for the benefit of the Global South.  He called for improving global economic, financial, trade, digital and ecological governance to build a world economy characterized by cooperation, stability, openness, innovation and eco-friendliness.Evandro Menezes de Carvalho, a professor of international law at Fluminense Federal University in Brazil, said that taking a systemic view of global governance, Xi highlighted key actions in each of the main areas of global governance in his speech.  "China has already given concrete demonstrations of being a country committed to the development of a more inclusive international order. In addition, it has been very active in promoting green development with significant investment in technology and environmental protection," he said.  The professor noted that global economic development depends on a balanced, stable financial and trade system that takes into account the needs of developing countries in order to promote a more inclusive international order, highlighting the importance of Xi's remarks on improving global digital and ecological governance with the Global South and developing countries involved.  "Global digital governance and ecological governance, which are increasingly linked to each other, if well directed towards the common good, could contribute to opening new paths for the future for humanity as they increasingly exert influence in today's world."  Under the Brazilian presidency, the Rio G20 Summit adopted the motto "Building a Just World and a Sustainable Planet", focusing on three priority themes: energy transition, fair sustainable development (with an emphasis on combating hunger, poverty and inequality), and reform of multilateral institutions.  China, standing at the forefront of the Global South, has been advocating for greater representation of developing countries in global governance to promote an international order that is truly democratic, inclusive and multilateral.  From advocating the Five Principles of Peaceful Coexistence to proposing the construction of a new type of international relations featuring win-win cooperation, and building a community with a shared future for mankind, China's consistent goal has been to build a more equal and just world, ensuring that developing countries have a greater voice in global affairs, observers said.At the Rio G20 Summit, Xi urged the World Bank to carry out a shareholding review and the International Monetary Fund to carry out quota share realignment in line with the agreed time frame and road map in order to increase the voice and representation of developing countries.  He said that China, alongside Brazil, South Africa and the African Union, is proposing an Initiative