Recently, two messages about interconnectivity have attracted attention. One is that the 10000th China Europe freight train X8083 successfully arrived in Duisburg, Germany; On the other hand, on the third anniversary of the opening and operation of the China Laos Railway, more than 43 million passengers have been sent and 48.3 million tons of goods have been transported. The "golden channel" is full of vitality. Across mountains and seas, the continuous flow of trains and boxes of goods from the China Europe Express to the China Laos Railway has witnessed the deepening and implementation of the high-quality joint construction of the "the Belt and Road", which also reflects China's solid pace of expanding high-level opening up. Coming from the depths of history, the Chinese people are well aware of the truth that "openness brings progress, while closeness inevitably leads to backwardness". The truth gained from history and practice is that 'if the world is good, China will be good; if China is good, the world will be better'. All the way, all industries thrive. The China Europe train crosses mountains and seas, and the China Laos railway runs thousands of miles, which not only promotes the "smooth flow of people and goods", expands the logistics transportation channel, but also brings new development opportunities and stimulates new economic vitality along the line. In Kazakhstan, the Aiju Agricultural Products Logistics Processing Park, located in the grain producing region of North Kazakhstan, has formed a linkage with the China Europe freight train, further expanding the export scale of agricultural products in Kazakhstan; In Laos, the China Laos Railway has driven the development of the Vientiane Saisita Comprehensive Development Zone, which has attracted 154 enterprises from 9 countries and regions to settle in, with an annual output value of more than $2 billion... From the China Europe Express to the China Laos Railway, practice has taught us that only win-win cooperation can make things happen, do good things and do great things. As long as there is a desire for cooperation and coordinated actions, natural barriers can become smooth paths, "landlocked countries" can become "land linked countries", and development valleys can become prosperous highlands. Only an open China can become a modernized China. To achieve the largest and most difficult modernization in human history, it is necessary to comprehensively expand domestic demand and enhance the linkage effect between domestic and international markets. China Europe regular train and China Laos railway not only benefit the people along the line, but also bring new development opportunities to many regions of China. Thanks to the China Europe freight train, the Chengdu Chongqing region has accelerated in the electronic information and new energy vehicle industries; Because of the China Laos Railway, Yunnan Pu'er City has ended the history of no trains, continued to promote the construction of bases such as featured biology, modern forest industry, leisure and vacation, and achieved the further development of tea, coffee and other industries in Pu'er... Park by park, industry by industry prosperity, let more people realize that the more open, the more development, the more need to open. China's opening up today is not a temporary measure, but a long-term consideration for the world, the future, and promoting common development. Orderly expanding independent opening up, based on China's own development needs and taking into account the needs of positive interaction with the world, combined with the characteristics of different industries and fields, actively opening up in a rhythmic, wide-ranging, and hierarchical manner, can win the initiative of economic development and international competition with the initiative of opening up to the outside world. Reform and opening up complement and promote each other. It is a successful practice of China's reform and development to promote reform and development through opening up, and it is also an inspiration from China Europe Express and China Laos Railway. In order to improve the efficiency of customs clearance, the Erenhot Railway Port in Inner Mongolia has deepened the application of the "Railway Entry Rapid Customs Clearance" business model and comprehensively carried out business reforms such as "vehicle side direct pickup". Since the beginning of this year, the customs clearance time for China Europe trains at the port has been reduced by 5% year-on-year, and the border inspection time has been reduced to less than 30 minutes; In September of this year, the first China Laos Thailand multimodal transport "one unit system" freight train departed from Kunming, Yunnan, achieving full door-to-door transportation in just 3.5 days... Opening up is also a reform. Every round of reform is always accompanied by a new round of opening up, and deeper opening up always drives the reform to further deepen. Proactively aligning with international high standard economic and trade rules and steadily expanding institutional openness are both practical requirements and historical inevitability. The recently held Central Economic Work Conference deployed key tasks for next year, one of which is to "expand high-level opening up to the outside world". Looking ahead, a more open China will inject more certainty into the uncertain world, and will also provide more new opportunities for world development with the new achievements of Chinese path to modernization. (New Society)