What does it mean to have a paper back?

Describe the vigorous and powerful calligraphy or profound writing. It is also often used to describe poems, essays and other works, with ingenious meaning and profound connotation.

From: Zhao Qingyi's "Ou Bei Shi Hua": "(Lu You Shi) is written first, and it is through the paper." It means: Lu You's poems focus on the use of pens, and the calligraphy is strong and powerful, and the nib can almost penetrate the back of the paper.

Synonym: a lot of money is tempered. Antonym: low-key statement

Grammar: subject-predicate type; As predicate, attribute and clause; Include praise

Sentence: 1. These words are written through the back of the paper, and the kung fu is quite good. Grandpa's painting penetrates the back of the paper, which is very vivid. 3. Many of the works in the calligraphy exhibition are excellent.