假定你是李华在互联网上看到英国高中生David发布的一则启事：希望结识一位中国朋友以便学习中国的语言及文化。请你用英文给David发一则电子邮件主要内容包括：1你怎样得知David的愿望；2你愿意成为他的朋友；你打算如何帮助他。词数80左右

Dear David,

I saw your post online that you are looking for a Chinese friend to learn about our language and culture. I am happy to say that I am willing to be your friend and help you in any way I can.

I found out about your wish through a mutual friend who shared your post with me. I was impressed by your eagerness to learn about Chinese culture and I think it's great that you want to expand your knowledge.

As for how I can help you, I can start by teaching you some basic Mandarin phrases and introducing you to some popular Chinese customs. We can also exchange information about our respective countries and compare our similarities and differences.

I hope we can become good friends and learn from each other.

Best regards, Li Hu