From Changchun Railway Station to the training center of Bank of China Jilin Branch, you can walk to Changchun Railway Station North Station first, and then take Light Rail Line 4. The specific route is as follows:

1. From Changchun Station, walk about 70 meters to Changchun Station North Station.

2. Take Light Rail Line 4 at Changchun Station North Station, and arrive at Liberty Road Station after 7 stops.

3. After leaving the station at Liberty Road Station, you can walk about 1.0 km to the training center of Bank of China Jilin Branch.

The above routes are for reference only. You can also consult local transportation hubs, or inquire about local maps and traffic information of specific modes of travel.