参考译文：

A Dream of Red Mansions is a novel written by Cao Xueqin in the 18th century. cao Xue Qin tells the story of Jia based on her difficult life experience.The tragic love story between Baoyu and Lin Daiyu. There are about 30 main characters and more than 400 minor characters in the book, each of whom is depicted with vivid personality.

Understand. The novel recounts the rise and fall of four noble families in detail, reflecting the various crises and complex social contradictions lurking in the feudal society.