Introduction to the Lancang River: The Lancang River is my country's water transport artery connecting Southeast Asian countries, and is known as the "Danube River of the East". Originating from the Qinghai-Tibet Plateau, it flows from Jingdong County into the Simao area and runs through six counties in the region. The flow within the region is more than 300 kilometers, and then flows through Xishuangbanna. When it exits, it is called the Mekong River, connecting Laos, Myanmar, Thailand, Cambodia, and Vietnam. Entering the South China Sea, the total length is 4880 kilometers.