To take the subway from T3 to T2, you can generally take the following routes:

  1. First, take the subway from Terminal 3, usually taking the Airport Line (Line E) of the Beijing Subway.
  2. Take the Airport Line to the terminal T2 Terminal Station.
  3. After exiting the station, walk from Terminal 2 to Terminal 2.

Please note that routes are subject to change and it is recommended to check the latest traffic information before traveling.