您也可以决定异步发送回一个消息，建立一个双向通信。

You can also decide to send a message back asynchronously establishing a two-way communication.

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然后服务器对请求进行处理后将HTTP响应消息发送回客户机。

The server then sends an HTTP response message back to the client after processing the request.

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都提供了相应的方法来标识应该作为建立新连接的操作的响应发送回去的消息。

Both provide a means to identify which messages should be sent back in response to the establishment of a new connection.

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