General Secretary Xi Jinping sent the youth to “measure the motherland with their feet, discover the spirit of China with their eyes, listen to the people's voices with their ears, and sense the pulse of the times with their hearts.” On February 22nd, the “Great Country Frontier” social practice team from the School of Mechanical Engineering of Jiangsu University came to the town of Sandougou in Hunjiang District, Baishan City, Jilin Province to carry out the theme practice activity of “I guard the border for the motherland”. The team came to Sandaogou Town, Hunjiang District, Baishan City, Jilin Province, to carry out the theme of “I guard the border for the motherland”, focusing on the economic development of the border areas, infrastructure, social governance, public services, cultural construction, ecological civilization construction and other areas to carry out research activities.

Led by the relevant activity leaders of the People's Government of Hunjiang District, Baishan City, the practice team asked the old cadres of the Youth League Committee of Hunjiang District to be their guides, and measured the motherland's border line with their footsteps. During the activity, members of the practice group have arrived at Ditai Village, Xianrendong Village, G331 National Highway and other places to feel the economic development of the border areas, cultural construction, ecological civilization construction, and with the Hunjiang City Council to retrace the garrison road, guarding the national boundary monument.

Members of the “Great Country Border” social practice group firstly arrived at Sandougou Township of Hunjiang City to meet with the guide and visited the local dam and reservoir. As the largest tributary of the Yalu River, the Hun River runs through the city of Baijiang and is strategically important as it separates the city from the Democratic People's Republic of Korea. Then, the members of the group drove into the G331 national highway by bus, visited the border scenery and felt the border culture along the way, and looked at the other side of the country, North Korea, from the observation deck, the two countries are separated by the Yalu River. The guide introduced the importance and ornamental value of the G331 National Highway, not only in the beautiful scenery along the way, but also more importantly in the geographic location of the national highway and the military management, the broad vision can look around the north and south of the Yangtze River, to ensure the stability of the border and the security of the motherland, the country's long-term peace and security of an important barrier. Then arrived at Sandougou Town Ditai Village, members of the practice group and the guide exchanged the development and shortcomings of the local tourism industry, to promote the development of the border to suggest suggestions.

Students who participated in the practical research have said that through this activity, team members witnessed the construction of the frontier, enjoy the natural scenery, feel the local culture, the economic development of the Hunjiang District of Baishan City, Jilin Province, the cultural construction of a more profound understanding, and a deep appreciation of the strategic significance of this piece of land for the country's long-term peace and stability. As the road of anti-American aid to North Korea, this land not only has a magnificent scenery, but also full of the heroism of defending the country and protecting the people. The members of the practice group are full of respect and pride when they stop at this land, and hope to contribute to the construction of the border. Living far away from the school, but also worried about the prosperity of the border. As new youth in the new era, the team members will continue to be rooted in the fertile soil of the motherland, and actively participate in the construction of the border, waving the sweat of youth in practice.