求翻译：谢谢你们的访问学者邀请函。但是由于时间问题没能赶上2012第一批次的申请（网上报名时间:每年两次，分别为3月1日-3月20日和9月20日-9月30日），第一批次的申请截止于4月，我收到你们的邀请函已是5月份，所以我申请的是第二批次，办完所有手续后最早要12月底才能来英国。这样我不能按照邀请函上的时间如约到达了。我会尽快在我们学校办好相关手续的。另外可否更改邀请函访问期从2013年1月到2013年12月。是什么意思？

Thank you for visiting scholars invitation. As a matter of time could not catch up with 2012 the first batch of applications (online registration: twice a year for March 1-March 20 and September 20 - September the 30th, respectively), the first batch of times the application deadline in April, I rec

Thank you for the invitation to visiting scholars. However, due to the time of 2012 to catch up with the first batch of applications on-line registration (time: two each year, respectively, for 3 - 3, 1, 20 and 20 September - 30 September), the first batch of applications for the 4 months that I hav

Thanks you the visiting scholar to invite the letter.But because the time question has not been able to catch up with 2012 first raid of application (on the net the registration time: Every year two times, respectively be March 1 - on March 20 and on September 20 - on September 30), the first raid o

Thank you for visiting scholar invitation. However due to time issues failed to catch up with the first batch of 2012 application (apply online time: twice a year, March 1 and September 20 respectively), the first batch of applications due in April, I received your letter of invitation is in May, so

正在翻译，请等待...