(1) Overlapping is one of the characteristics of songs, and repeated singing is often to strengthen the theme.
For example, in the chapter of Jiaxu, from "the white dew is frost" to "the white dew is not wet" and then to "the white dew is not dead", which means that with the passage of time, the protagonist's gaze and pursuit time are prominent; From "the road is blocked and long" to "the road is blocked and broken" and then to "the road is blocked and right", it is a repeated rendering of the difficulty of the pursuit process, showing the perseverance of the protagonist.
(2) Re-chapter has different levels of promotion, thus enhancing the sense of rhythm of poetry.
(3) Overlapping can describe the vividness of characters and plots; On the other hand, it can enhance the timbre and have a sense of rhythm when singing and reading aloud. Such as "gray", "boundless" and "sad", all make Wen Zi lively.
2. Guan Ju and Jia Jian are both famous articles in the Book of Songs. They are well-known and easy to remember and read, precisely because of their bright rhythm and lively language characteristics.