Through train is the proxy server of education network. Simply put, when the nodes connecting the external network and the education network, your computer and the resources you want to access are in different networks, it is necessary to help you transmit data through it.

The advantage is that it is much faster to visit the external network, and many web pages that could not be opened before can be opened now, so you can download the external network resources with the electric donkey. ............

Effect: Yes, at least I feel good after using it for so long.