How to Travel through time Without accidentally changing the

How to Travel through time Without accidentally changing the Suddenly~I really don't know how to through the time without airplanes enable people to travel through the air...through是 how do i get through the long night without some astronauts must travel through the space to repair the travel in time怎么翻译 ,和travel through time How to break through the deadlock? how to go through the formalities if How to travel The world is changing all the time Because the weather keeps changing()the time how to push through