their first match was a great win which ensured them to enter the semi-finals. However, Dortmund may not be able to win in the next match, Barcelona will attack even more strongly in the next match and enter the semi-finals, besides, Barcelona has the possibility of entering the final.
Sure, you know the first leg is always more important than the second leg and now that barcelona have succeeded in wining them with 4 goals. The possibility for them to win back with this goal margin is something anyone can not think nor imagine that it will happen due to how consistant barcelona is towards chasing this champions league title, so I don't think if there's still a hope for dortmund.