1. Reflect the miserable experience of working people being oppressed and exploited.
2. Reflect the love and marriage between men and women
It reflects the satire on the upper rulers and exposes the decadent and shameless life and ugly soul of this class. Its satire is extremely sharp and its style is also very spicy and sharp.
4. Reflect the working people's dissatisfaction with war and corvee.
Secondly, from the artistic features, they all have certain reality and unique narrative.
Third, in terms of expression, they all have the characteristics of flexibility.
References: Comparison of "National Style" between The Book of Songs and Folk Songs of Han Yuefu