两篇 ke yi tong shi liang pian tou tong yi qi kan ma
同学 ke yi he tong xue fa tong yi ge qi kan ma
两篇 liang pian lun wen tong shi tou tong yi ge qi kan
投到 lun wen tou dao tong shi tou dao bu tong qi kan
投稿 neng bu neng tong shi tou gao gei bu tong qi kan