Belgium Train Shopping Ticket购买方式

在b-rail 网站上找到belgium 境内来回火车票是9.9 euro


使用限期是：


Round trip on the same day on:

Saturday 03/12/11 or Sunday 04/12/11

Saturday 10/12/11 or Sunday 11/12/11

Saturday 17/12/11 or Sunday 18/12/11

Each day from Saturday 24/12/11 until Sunday 08/01/12 included

Saturday 14/01/12 or Sunday 15/01/12

Saturday 21/01/12 or Sunday 22/01/12

Saturday 28/01/12 or Sunday 29/01/12



请问购买过的朋友，是否一定要在b-rail网上买，还是到了station, 在station 购买也是可以的？谢谢！