就是每趟火車在Princeton junction下都有相應的小火車去校區. 可以查njtransit.com

https://www.njtransit.com/train-to?origin=Newark%20Airport%20Rail%20Station&destination=Princeton%20Junction%20Station&date=04%2F08%2F2025&originStationCode=101&destinationStationCode=164