英语翻译很高兴收到你的回信,而且在你这么忙的时候还能发邮件给我.我马上就要开学了,9月1号将开始新的课程.你也结束假期开始工作了吧?

I'm glad to receive your letter. Thank you for replying me when you are so busy. The school will start soon and I will learn new courses since 1st Sept. Have you completed your work?