Nowmanyyoungpeoplearetravelingaroundtheworldontheirown，...
问题详情：Nowmanyyoungpeoplearetravelingaroundtheworldontheirown，notbecausetheyhavenoonetotravelwith，butbecausetheyprefertogoalone.KristinaWegscheiderfromCaliforniafirsttraveledalonewhenshewasatcollegeand...