I wrote to them last month and I'm still waiting for a reply.

我上个月给他们写了信，到现在还在等回音。

《牛津词典》

In the first use case, an application will connect, issue a request, and wait for a reply.

在第一个用例中，一个应用程序将建立连接、发起请求并等待回复。

youdao

A person initiated the service and must wait for a reply, and will eventually give up waiting.

某人发起这个服务且必须等待一个答复，并且最终将放弃等待。

youdao

Kyle Lafferty slotted in the second as United were caught pushing for a reply.

BBC: Rangers 2-0 Dundee United

The traditional offline fundraising process is long and stressful, most of your time is spent waiting around for a reply.

FORBES: Streamline Your Fundraising Process By Raising Online

If the user enters a phone number, he or she receives a text message asking for a reply with a registration code.

FORBES: New Mac Malware Scams Users Into Signing Up For Cellphone Charges