两个人吃一个b一个奶

Liu Jiutian, there is some friendship between you and me. The nine notes of the Tian Qin are in the Northern Continent, which is the supreme holy secret of the Qin Dao. It has some connection with the Nine Mysterious Scriptures of the Qin and Swords in our Qin and Sword Palace. This holy music notation will not be of much use if you are a layman in the music field....