hi every body , i need some advice i am confused i dont know the best way to go to beijing international airoport from tianjin( tianjin foreign studies university) , is it better to take bus shuttle directly to the airoport , or take the train to beijing station then take the train-express to the airoport ,the problem is that i have heavy luggage so i dont know how to do , can anyone hepl me ? THANK YOU IN ADVANCE .