??? ????? ??? ??????? ????? ??????? ????? security ????? ??????? . ??? ?????? ?? ??? ??????? regularly ??????? ??? ???? satisfactory state ????? ready ?? ??????? . Maintenance of Luggage includes keeping luggage clean { ????? any harm ?? suitcases { ??? ??????? ????? ????? ???? ??? ?????? ????? adhering to these recommendations ?? ?