怎样分析大小单双公式规律

简介：The past vows are like the colorful bookmarks in the textbook, depicting many beautiful verses, but after all, they are just a burst of smoke, and the flowing water takes away the time. The story changed the two people, in that sentimental and first youth. La la la la la la, the story of running water taking away time has changed us, in that sentimental and first youth.