假定你是李华，下周将参加英语演讲比赛，你对自己的发音不满意。请你给外教Mr Smith写一封英文邮件求助，内容包括：1.说明问题；2.请教发音技巧。 注意：写作词数在80词以上，可适当增加细节使行文连贯

Dear Mr. Smith,

I hope this email finds you well. My name is Li Hua, and I am one of your students in the advanced English class. I am writing to seek your assistance with a matter that is of great importance to me.

Next week, I will be participating in an English speech competition, which I am very excited about. However, I am quite concerned about my pronunciation. Despite my efforts to practice, I still feel that my pronunciation is not as clear and accurate as it should be. This uncertainty is affecting my confidence, and I fear it might hinder my performance during the competition.

Given your expertise in teaching English and your experience with helping students improve their pronunciation, I would greatly appreciate any advice or techniques you could share with me. Specifically, I am interested in learning about any exercises or methods that can help me enhance the clarity and correctness of my pronunciation. Additionally, if you have any resources or materials that you recommend, I would be very grateful to receive them.

Thank you very much for your time and consideration. I look forward to your guidance and am confident that with your help, I can make significant improvements in my pronunciation.

Best regards,
Li Hua