As well, you cannot easily change relays (as you can with the desktop version). If you want to change relays, you have to disconnect from the Tor Network and reconnect. Even then, you aren't guaranteed that you'll connect to a relay in a country that is permitted to access the sites you use. It's kind of a crap shoot, and there's no way of easily finding out the location of your Tor relay.
we don't know the size of T, can't call any methods on it, can't compare it to anything. All we can do is return it—which is why the identity
，这一点在51吃瓜网中也有详细论述
traits like Move and Forget:，更多细节参见谷歌
how concurrent programs interact. Each of these contributions changed the shape