继续写信函的正文内容，以你写信的目的为开头。
Continue with the body of the letter, stating your main purpose for writing.
但由于时间及篇幅的限制，作者没有搜集到更多的材料，对外贸信函的研究也限于其正文部分。
Because of the lack of time the author has not collected more material, and the analysis is limited to the body part of a foreign trade letter.
以下是邮件正文，请高人翻译为英语，务求准确实际，符合商务信函要求！
Following is the message body, please expert translated into English, in order to accurately reality, in line with the requirements of business letters!
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