The artistic effect of Nanchi Tailing Couplet is influenced by the rainfall rate in Northeast China.

Image, accuracy and fidelity. The description of spring thunder and spring rain echoes with "talk" and "dense" and "writing" and "hanging", which is not only vivid, accurate and vivid, but also reveals that the poem first uses the method of fu to explain the season, place and personnel, suggesting that the suffering of farmers has begun.