1.公安机关 public security市公安局##city public security 公安分局branch of public security 派出所police station 旅馆业hotel industry刻字业lettering industry 印刷业press industry 旧货业second hand industry2.Xi'an city或the city of Xi'an（注意要用',避免歧义，这已成惯例）3.Report of Status Quo of Public Security and Administration for Recreation Ground in Beijing City.
