Also read my study introduction: Jin Taoqian's poem "Reading the Classic of Mountains and Seas": "I have plowed and sown, but I still read my books." This place used to be a study, with a two-story building built on a hard hill. It was called "Hui Du Guan" during Liu's time, "Hui Du Wu Study Room" during Sheng's time, and after liberation, it was called "Hui Du Wu Guan" now. Restore original name.