布鲁塞尔经布鲁日到鹿特丹的火车票

在比利时铁路官网上看到，布鲁塞尔经布鲁日到鹿特丹的火车票，联程一共26.8，比分段便宜。票价说明是这样：
“Refund Conditions: Refund before the 1st day of validity: EUR 5 fee/refund from the 1st day of validity: EUR 15 fee Digital Homeprint" tickets can only be refunded in their original point of sales (i.e. not at the train stations)
Exchange Conditions: No exchange possible
Special information: Ticket valid for any conventional train on the requested route during the whole validity period of the ticket (for homeprinted tickets, the validity period is limited to the requested travel date). Not valid on high-speed trains, except for ICE trains.
Travel Conditions: no specific travel conditions. ATTENTION: homeprint tickets have a validity of 1 day! ”

是不是说可以在这一天内任选车次坐？只是不能坐高速，所谓高速就是“THALYS”吧？
谢谢