商务英语信件是商业交流的重要组成部分，包括询盘信件、投诉信件和感谢信件。询盘信件用于询问产品或服务的详细信息，投诉信件用于表达对产品或服务的不满，并请求解决方案，感谢信件用于表达对某人或某事的感激之情。
1. 询盘信件
Dear Sir/Madam,
We are writing to inquire about {product/service} you recently advertised in {publication/website}. We are interested in {product/service} and would like to know more details such as {specifications/pricing/delivery time}.
Could you please provide us with a catalog and a price list for your {product/service}? Also, please let us know if there are any discounts for bulk orders.
Thank you for your assistance and we look forward to hearing from you soon.
Sincerely,
{Your Name}
2. 投诉信件
Dear {Name of recipient},
I am writing to express my disappointment with {product/service} that I recently purchased from your company. {State specific complaint and provide detailed information, including dates and any attempts to resolve the issue}.
I would appreciate if you could address this issue as soon as possible and provide me with a satisfactory solution. If this is not possible, I may have to consider taking further action.
Thank you for your attention to this matter.
Sincerely,
{Your Name}
3. 感谢信件
Dear {Name of recipient},
I would like to express my sincere gratitude for {specific reason for gratitude}. {Provide specific details, such as how their actions helped you or your company}.
Your professionalism and dedication to your work are greatly appreciated. It is a pleasure doing business with you and I look forward to continuing our cooperation.
Thank you again for your exceptional service.
Sincerely,
{Your Name}
