So if you saw them contract a germ or a piece of information, you would know that, soon enough, everybody was about to contract this germ or this piece of information.
也就是说，假如你看到网络中心的人们感染病毒或得到了一些信息， 你就能知道，很快 所有人都会被传染这种病毒 或得到这个消息。