用户可以相互追随，这实际上就是一个简化的联合（syndication）服务。
Users can follow each other, which is basically a simplified syndication service.
使用此会话密钥，客户端和服务器可以安全地相互通信。
Using this session key, client and server can safely communicate with each other.
发送和目标服务器必须相互信任。
这两个组件可以凭借这种类型兼容的服务/引用来实现相互通信。
These two components could communicate with each other, across this type-compatible service/reference pair.
只有在需要进行相互身份验证时，客户机才向服务器请求这个包。
The client requests the server for it only when mutual authentication is necessary.
而网络服务提供商相互之间还要支付费用——连接费。
And Internet service providers pay for the bit in between - the connection.
实名登记需要客户和服务提供人之间相互信任。
The real name registration calls for mutual trust between customers and service providers.
实名登记需要客户和服务提供人之间相互信任。
The real name registration calls for mutual trust between customers and service providers.
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