Naja comes from Morocco. As an international student studying business management in Zhejiang, he is very interested in how Zhejiang has made such a big success in ecological governance, and especially water treatment. In this video, he paid a trip to Jiaxing, where he met Liu Rui, executive deputy director of the Ecology Research Center of Tsinghua Yangtze River Delta (Zhejiang) Research Institute. Let's watch the video to find out more. 

Editor: Ye Ke