In the northwest of Yunnan, China, three major rivers in Asia run side by side from north to south without crossing, forming a rare world natural heritage Three Parallel Rivers. This region is rich in geological and geomorphic landscapes, has a three-dimensional climate type, and is one of the regions with the richest animal and plant species diversity in the world. At the same time, many ethnic groups coexist harmoniously. This lesson, Three Parallel Rivers is one of the series of Advanced Chinese Courses entitled Guarding the Culture Fountainhead, will take you to appreciate the wonderful mountains and waters flowing along the "three parallel rivers", appreciate the colorful national culture, and experience the hard work of protecting the world heritage. Meanwhile, you can use the language knowledge learning to make suggestions for the protection of China's world heritage.