The meaning of rain in the clouds is clear.

"The cloud sells rain and the color is clear." The dark clouds cleared and the continuous rain stopped. The sun is shining and the weather is fine. "The cloud sells rain and the color is clear." From Wang Bo's Preface to Wang Tengting. This poem was written in, and Yan, the governor of Hongzhou, rebuilt the pavilion and hosted a banquet in the pavilion to entertain guests. The author passed by here when he visited his father, and also attended the big meeting, improvising poems and writing this preface.

Excerpt from Preface to Wang Tengting: Embroidery and Carving, Yamahara shows its full vision, Kawasawa shows its farsightedness. Yan Lu, the hometown of Zhong Mingding's delicious food; Gechuan maze, bluebird Huanglong. Clouds selling rain Ji, colorful. Sunset and lonely Qi Fei, autumn waters and sky are the same color. Fishing boats sing late, the coastal sound is poor, the array is cold, and the sound breaks Hengyang Pu.

This preface uses many allusions to describe lyricism, some are historical stories, some are predecessors' sentences, and the techniques used are different, some are very clear, such as "Feng Tang is easy to get old, Li Guang is difficult to seal"; Some are secretly used, such as "feeling cold when greedy for springs, and being happy when dry"; Some are being used, such as "Meng has noble taste and is free to serve the country"; Some of them are used backwards, such as "Ruan Ji is rampant, how can you cry at the end of the road?" The use of allusions enhances the expressive effect of the article.