Complex sentence: In recent years Wizz stopped developing its network of connections from Poland and opened new bases in Czech Republic, Bulgaria, Macedonia, Romania, Lithuania and Serbia, however Poland is still the largest capital market for Wizz Air.
Split into simpler sentences: In recent years Wizz stopped developing its network of connections from Poland and opened new bases in Czech Republic, Bulgaria, Macedonia, Romania, Lithuania and Serbia. However, Poland is still the largest capital market for Wizz Air.