Translation:New, German trains are arriving in Debrecen and in Szeged.
why are the cases in same tasks different?
It's just a quirk of place names within Hungary. Some take -ba / -ban / - ból, and some take -ra / -n / -ról. There's some discussion here: https://www.duolingo.com/comment/17071996
thanks a lot
Helpful link -- kosönöm szépen!
A railway train is the same as a train