The Doctor fled Gallifrey in a stolen TARDIS ("Time and Relative Dimension in Space"), a time machine that travels by materialising into and dematerialising out of the time vortex.
Doktoren flygtede fra Gallifrey i en stjålen TARDIS ("Time and Relative Dimension in Space"), en tidsmaskine der rejser ved at materialisére ind og dematerialisére ud af en tidshvirvel.