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Pictures made of propolis are displayed during the Honey Festival and Day of Honey in the Culinary at the Beekeeping Center in Lesce, Slovenia, Sept. 22, 2018. (Xinhua/Matic Stojs)
Pictures made of propolis are displayed during the Honey Festival and Day of Honey in the Culinary at the Beekeeping Center in Lesce, Slovenia, Sept. 22, 2018. (Xinhua/Matic Stojs)