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Hot air balloons are seen during the Croatia Hot Air Balloon Rally 2019 at Krapina Zagorje Airport in Zabok, Croatia, May 1, 2019. (Xinhua/Davor Puklavec)
Croatia Hot Air Balloon Rally 2019 held at Krapina Zagorje Airport in Zabok
Source: Xinhua| 2019-05-02 10:44:43|Editor: Shi Yinglun
