It means that the word loquat is not the word pipa, but I only blame myself for not studying hard in those years. If pipa is regarded as loquat and can blossom and bear fruit, then all musical instruments such as bamboo flute and flute can blossom and bear fruit. From the poem "Loquat is not a pipa" collected by Shen, a scholar in Ming Dynasty, the original poem is: Loquat is not a pipa, only complaining about poor literacy in that year. If the pipa can blossom and bear fruit, all the pipes in the city will be open.