What is the structure of Bo Qinhuai?

Is it Du Mu's poem Bo Qinhuai? Poetry emphasizes the combination of inheritance and transformation, and this poem is a model. The first sentence explains the background, slowly, and the second sentence is tight, all of which are straightforward. In the third sentence, the screenwriter mentioned that "a strong woman in business hates her motherland", and the main idea was revealed. The last sentence inherits the third sentence, with profound meaning and clear theme: it expresses the poet's denial of drunkenness and his deep concern about the fate of the Tang Dynasty.