要完成图书的订单，您需要将电子邮件形式的确认函作为订单处理的一部分发送。
To complete the book order, you need to send an E-mail confirmation as part of the order process.
在订单处理过程中，最不可预见的步骤之一是发送确认电子邮件。
One of the least predictable steps in the order-processing is sending the confirmation E-mail.
根据我们近来交往的电子邮件，兹确认以下订单。
With reference to our recent exchange of E-mails lately, we confirm our order as follows.
根据我们近来交往的电子邮件，兹确认以下订单。
With reference to our recent exchange of E-mails lately, we confirm our order as follows.
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