5由于我方已订得舱位的轮船晚到，因此，请将你方第060531号信用证的船期和有效期分别展至7月10日和7月25日，非常感谢。

答：As the ship on which we have booked shipping space was late, we would appreciate it if you could extend the shipment date and the expiry date to July 10 and July 25 respectively.