valid period of a passport 普通～为：护照持有人未满16周岁的5年，16周岁以上的10年。The valid period of an ordinary passport shall be five years for a holder under the age of 16,and 10 years for a holder at or above the age of 16./～届满expiration of the validity of a passport /～延长至… the validity of this passport is extended to …