1·Look forward to receiving your reply letter.
盼望能接到您的答复信。此致敬礼！
2·In deep shock and sorrow, he went out to send his reply letter.
带着深深的震惊和悲伤，他出门去给老朋友寄回信。
3·If there is any falsity or any violation of rules, the administration of foreign exchange shall not make the registration and shall explain the reasons in the reply letter.
如果发现有虚假、违规等情况，外汇局将不予登记，并在回函中说明。
4·No reply from him yet; presumably he hasn't received my letter.
他没有回信，想必没有收到我的信。
—— 《新英汉大辞典》
5·I hope that you can reply to my letter at your convenience.
我希望你方便时能够给我回信。
6·I am writing in reply to your letter of 16 March.
3月16日来函收悉，现答复如下。
—— 《牛津词典》
7·We are writing in reply to your letter of April 5th, in which you asked for our advice concerning the marketing of motor-cycles in the western part of your country.
贵方4月5日来函要求我方就摩托车在贵国西部市场销售一事提供意见，现特函答复。
8·Write a reply to this business letter.
就下面的商业书信写封回信。
9·Well, let me finish here and I am already eagerly awaiting your reply to this first letter.
好吧，我就写到这里吧，我已经迫不及待地期盼着你对这第一封信的回复了。
10·Read the letter, and then write a reply.
读下面这封信，然后写一封回信。