It took me almost two years (June 2007 - March 2009) to go through all the GRE vocabulary in the Red Bible (a GRE vocab book that every test-taker in China uses). Now the mission is finally accomplished. Up to now I have learned the some 7,000 selected words in that book around eight times each. What I need to do in the future is to review and review and review. Try to keep a good memory until the day of exam.