The first and second parts of a poem

There are two words: 1 and only one paragraph, which is called monotony. 2. Segmented: a. Two segments are called "double tones", the first segment is called the upper segment or the upper segment, and the second segment is called the lower segment or the lower segment. As for how to segment, it depends on the specific requirements of each epigraph. B, divided into three segments, each segment is called a stack. The division of labor is the same as before. C, four paragraphs (such as "Introduction to Birds"), each paragraph is the same as the three paragraphs. Irregular segmentation depends on the requirements of specific aphorisms.