我们说，通知被“传播到上行服务器”，如图3 所示；箭头表示流向上行服务器的通知。

We say that notifications are "propagated to the upstream server", as illustrated in Figure 3; arrows represent notifications which flow to the upstream server.

youdao

我们说，通知被“传播到上行服务器”，如图3 所示；箭头表示流向上行服务器的通知。

We say that notifications are "propagated to the upstream server", as illustrated in Figure 3; arrows represent notifications which flow to the upstream server.

youdao