This intermediary interprets requests from the virtual system to the host, thereby adding a layer of virtualization between the virtual system and the host.
这个虚拟中介截断了虚拟机系统发往主机的请求，也就是在虚拟机系统与主机之间添加了一个虚拟化层。
2
Another trusted intermediary might be a message broker that handles trust relationships between requesters and an application service host.
处理请求者和应用程序服务主机之间的信任关系的消息代理可能是另一个受信任的中介。
3
This starts a TCP server on port 8070 that ACTS as an intermediary between any client and port 8080 on the local host, which in this case is serviced by Tomcat.