The Book of Songs, Delighting in Rain on a Spring Night, Xijiang Moon Walking on the Yellow Sand Road, and Tianjing Shaqiu are all ancient poems, which generally pay attention to the number of words, sentences, levelness, rhyme, language and connotation.
Words of the Sun and White Birch are both modern poems with flexible writing and free sentence length, which are divided into several paragraphs and are more suitable for expressing emotions.