[Pound Mailing List] multiple URLs configured on Pound not working

[Qingshan Xie]

Hello, expert, 

    According to manual, Pound should be able to configure multiple URLs.  
However, it failed when I tried to configure two URLs as below in service 
showed as below, but it worked if I remove on URL.
......  
 Service
            URL "/ccivm0"
            URL "/ccivm4"
            BackEnd
                Address xxx.xx.x.xxx
                Port    84
            End
 End

......

am I configured it wrongly?  what is the right way to configure it?

Thanks, Q.Xie