如何礼貌地向教授询问通识课期末成绩？

Dear Professor [教授的名字],

I hope this email finds you well. I am writing to inquire about my final grade for the '通识课程的名称' course. While I appreciate the effort and dedication you have put into teaching the course, I was disappointed to see that my final grade did not reflect my efforts in the class.

I attended every class and completed all assignments to the best of my ability. However, I was surprised to receive a grade lower than what I had expected. I was wondering if there was any feedback or constructive criticism you could provide me with to help me improve for future courses.

Thank you for taking the time to review my concerns. I look forward to hearing from you soon.

Best regards,

[你的名字]