Pinyin: mò luò

Explanation: 1. In Chinese medicine, it is the meridians of the human body. 2. The main veins and branches of mountains, the main streams and tributaries of water. 3. The vascularized tissues of plant flowers, leaves and insect wings. 4. A metaphor for the layout and organization of an article. 5. It also refers to the academic school of thought or the thread of thinking.