加法交换律

故事讲述了“快哥系列电影”中的全新兄妹故事。听风与听雨是一对兄妹，自从杨妈妈与李叔叔再婚后，重组家庭的尴尬大戏就一直在家中上演。这一天，不速之客李圣突然出现……天降2哥？父母偏心？哥哥也倒戈？这一连串的巨变令听雨不堪忍受，只想大喊一句：快把我2哥带走！。Young Ivan Drago's newfound love of board games catapults him into the fantastical and competitive world of game invention, and pits him against the inventor Morodian, who has long desired to destroy the city of Zyl, founded by Ivan's grandfather. To save his family and defeat Morodian, Ivan must come to know what it is to be a true Games Maker.。