求翻译：不好意思这次回信很慢，因为最近我一直在忙毕业论文的修改工作。去年十二月我向APS考试中心递交了个人资料，昨天APS考试中心终于给我了电话通知，为我预约的考试时间为5月21日，但是由于与我的论文提交和论文答辩时间相冲突，我只能发邮件进行考试延期申请，请问我能申请六月上旬的考试时间吗？是什么意思？

I am sorry this letter is very slow, because lately I've been busy the modification of the thesis. I to aps examination centers in December last year to submit personal information, yesterday the aps examination center finally gave me a phone call, make an appointment for my exam on May 21, but due

正在翻译，请等待...

The embarrassed this reply is very slow, because recently I continuously in busy graduation thesis revision work.Last December I have submitted individual material to the APS test center, yesterday the APS test center finally gave me the telephone message, made an appointment the test time for me fo

I'm sorry this reply is slow, because I have been busy recently modification of graduation thesis. Last December, I submitted personal information to the APS testing center, APS exams will finally give me the phone notification yesterday, my appointment time is May 21, but due to conflicts with the

正在翻译，请等待...