x-1的3次方展开式

Po Jun came to a window, opened the window, touched a button on his shirt, unbuttoned his collar to breathe, and said, this is just your rhetoric, Wu Wu Qing Valley is now becoming more and more in line with Yin. The Queen's Spiritual Clan is getting closer. As the leader of the four killers of the Demonic Dao Sect. We, Pojun, have an unshirkable responsibility to the sect leader....