What expression did the poet Han Niu use in Mourning for a Maple Tree?

The expressive techniques of chanting poems.

Han Niu's poem "Regret for the Past" expresses the author's appreciation of the tall and straight character of maple trees, and has a traditional expression of chanting things.

Modern famous poet, formerly known as Shi, pen name. The distant ancestor was Mongolian. 1923 10 was born in a poor peasant family in Dingxiang county, Shanxi province.