2. The content is opposite. For example, the window contains autumn snow in Xiling, and the Wu Dong Wan Li boat is moored at the door. Doors and windows, Xiling-Wu Dong, Qian Qiu-Wan Li and Sesshū Tōyō are all opposite. Only drink Changsha water and eat Wuchang rain. Only-come again, drink-eat, Changsha-Wuchang, water-fish. They are all against each other.
3. rhyme. Ancient poetry pays attention to rhyme. Generally, it is four sentences and one rhyme (except some epigrams), and four sentences are a short paragraph.
China's folk poems are generally free. The content is substantial.
The expression of Spanish poetry is characterized by implication, which is often one meaning on the surface, but actually another meaning.