According to media reports, in the first half of this year, the total import and export value of Zhejiang Yiwu was 268.97 billion yuan, a year-on-year increase of 21%. Among them, exports were 237.41 billion yuan, a year-on-year increase of 17%, and imports were 31.56 billion yuan, a year-on-year increase of 63.4%. Yiwu's advantages and potential in "buying the world and selling the world" continue to be unleashed, writing a vivid footnote to the improvement of Zhejiang's openness. This inevitably reminds people of Zhejiang's systematic deployment of three "No.1 projects" for high-quality development since the beginning of this year - the "No.1 Development Project" for digital economy innovation and improvement, the "No.1 Reform Project" for optimizing and improving the business environment, and the "No.1 Open Project" for upgrading the "sweet potato economy". These three "No.1 Projects" benchmark innovation, reform, and opening up in three major areas, and carry out comprehensive breakthroughs. Innovation in the digital economy and optimization of the business environment are well-known policy driving points, but the "sweet potato economy" is unfamiliar to many people. Actually, this is not a new concept. The metaphor of 'sweet potato' vividly illustrates the dialectical relationship between 'standing firm' and 'expanding openness'. Zhejiang businessmen and Zhejiang enterprises, like the vines of the "sweet potato economy" spreading around the world, reveal the underlying logic of Zhejiang's economy from small to large and from large to strong over the past few decades, and also demonstrate the iterative upgrading and vitality of the "sweet potato economy" in the new era. In Zhejiang, this is a necessary requirement for the economic and social development of Zhejiang, as it is "jumping out of Zhejiang to develop Zhejiang". This is also very enlightening for the whole country. Breaking regional protection and separation, creating conditions for deepening division of labor, improving efficiency, expanding market capacity, accelerating the construction of a unified national market, promoting the smooth flow of commodity factor resources in a larger range, is conducive to giving full play to China's deep and broad economic advantages, improving the efficiency of resource allocation, and providing strong support for building a Dual circulation and promoting high-quality development. On the one hand, remove the unreasonable institutional "fence", and on the other hand, cultivate the "soil" of the national unified market with the reform of Factor market, so that the "sweet potato economy" can be better developed. At a high level of openness, this is also a tool for breaking away from inherent thinking. The report of the 20th National Congress of the Communist Party of China (CPC) regards the promotion of high-level opening up as an important part of "accelerating the construction of a Dual circulation and striving to promote high-quality development". Only by continuously expanding high-level opening up to the outside world, firmly implementing the strategy of expanding domestic demand, promoting the formation of a strong domestic market, attracting global resource factors through domestic circulation, and promoting trade and investment liberalization and facilitation through high-level opening up to the outside world, can we form a virtuous economic cycle in high-quality development. The Political Bureau meeting of the Central Committee of the Communist Party of China held on July 24th pointed out that the current economic operation is facing new difficulties and challenges, mainly due to insufficient domestic demand and difficulties in the operation of some enterprises