出单双出现规律的公式gec

简介：There is a clan in the East China Sea who raise dragons for a living. The Heluo royal family once wanted to force them to serve the court, so the clan members commanded nine heavenly dragons and set off a huge tsunami, flooding the four continents and destroying all life. The emperor at that time personally went to the altar to admit his mistake and set aside twelve islands for them to build a country, and then he gave up.