Overlapping words, also known as overlapping and repetition of chapters and sentences, is a way of expression of poetry and an important feature of the composition of the Book of Songs, that is, the syntax of each chapter is basically the same, and only a few corresponding words are changed in the middle, singing and repetition. Its function is to deepen the impression, render the atmosphere, deepen the main body of the poem, enhance the musicality and rhythm of the poem, and make the feelings fully expressed.
Overlapping means that sentences with the same meaning overlap back and forth. It is often used to express a strong feeling of characters, giving people the feeling of "ever-changing" and "circling the beam for three days" Making good use of overlapping will make the works have strong artistic charm.