The idiom describing the wonderful content of the book was as follows: 1. Ups and downs: To describe the development of the story with ups and downs, twists and turns, and complexity. 2. Enthralling: Description of the content that is so captivating that it is difficult for people to extricate themselves. 3. Magnificent: The description is rich and colorful, and the scale is grand and amazing. 4. Profound and profound: To describe the profoundness and profoundness of the content that is admirable.