But to guard against impostors and keep out traitors , we prohibit any person , whatever his activities , from entering and staying in the border region unless he secures permission and written authorization from the government and the rear headquarters 但是凡未经本府或本处同意并取得本府或本处的证明文件,而从外面进入边区境内停留活动之人,不论其活动的事务属于何项,一律禁止,以防假冒,而杜奸宄。