The main features of Jiaxu are embodied in three closely related aspects: vague facts, empty image and overall symbol. Repeated singing is a common technique in The Book of Songs.
As far as this poem is concerned, this change is all about rhyme-the first chapter "Cang, Shuang, Fang, Chang and Yang" belongs to the rhyme of Yang, the second chapter "Qi, Mei, Ji and Gui" belongs to the rhyme of Fat, and the third chapter "Cai, Ji, Huan, Right and Turbid" belongs to the rhyme of Yang.
At the same time, this change has also caused the reciprocating advancement of semantics. Such as "white dew is frost", "white dew is not sad" and "white dew is not endless"-dew at night condenses into frost flowers, which melt into dew due to rising temperature, and the dew evaporates under sunlight-indicating the continuation of time.