[tor-onions] Technical Issues Studying TOR

Hello sir, I'm presenting a seminar in my college on the DARK NET I was studying the TOR RELAY, while going through it, a question came into my mind, that the destination computer knows the IP of the last node of the relay, so, if the destination is under surveillane, whether the last node will be uner threat and the traffic analyzers can backtrack the relay as they know the address of the last node...

I'm vigorously waiting for your reply..