Hot-air balloons are seen during the Croatia Hot-Air Balloon Rally 2018 in Zabok, Croatia, on May 1, 2018. (Xinhua/Igor Soban)
Hot-Air Balloon Rally 2018 held in Zabok, Croatia
Source: Xinhua| 2018-05-02 08:34:28|Editor: Chengcheng
KEY WORDS:Balloon
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