2. The poem says: "The torrent flows through the stone pile, but the light darkens in the thick pine. The surface of an entrance is swaying with nut horns and overgrown with weeds. " Two fights are the most neat. In these two poems, "Noisy" is a verb pointing to "Quiet", "Pan" is a verb pointing to "Ying", "Loki" is a noun pointing to "Shensong" and "Lingbi" is a noun pointing to "Wei". The duality in the preceding and following sentences is not only relative in parts of speech, but also similar in meaning and grammatical structure.