The surname Xu is given by the generation with the sound character, that is, the surname Xu also contains the sound character

Xu Jun Hao Xu Wen Bo Xu Tianyu Xu Song De Xu Jiayi Xu Hongxuan Xu Da Qiang Pengxuanxuxinleixupengtaoxuyanbinxujunchixuweizexuxuhaonanxukasxuxuchichesxuxuanxuanxuwenhaoxujinaoxu.. .2367