A client calls a method to receive the request and then another method to send a reply.

客户端调用方法来接收请求并调用另一个方法来发送回复。

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Write a 200 word reply and send it to us.

写一段200字的回复，然后发给我们。

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Not having received a reply, the anxious mother decided to send an e-mail to her daughter abroad again.

由于没有收到回信，这位焦急的母亲决定再给她在国外的女儿发一封电子邮件。

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This botnet would then send a large number of requests to the DNS which would reply, resulting in a much larger amount of data being fired at the target, causing it to be swamped.

BBC: Viewpoint: How hackers could decapitate the internet

When calls come in, a large image representing the caller appears on the screen along with options to drag an on-screen icon to ignore, answer, or send a text reply.

WSJ: Galaxy Nexus: An In-Your-Face Android Phone