波兰周日开始为期两天的全国哀悼,在克拉科夫历史悠久的主广场发生大规模枪击事件后,警方加强了安全,政府表示,这可能是受到远方的启发。Poland began two days of ​national mourning on Sunday and police bolstered security after six people were killed in a mass shooting in Krakow's historic main square that the government said ‌was likely inspired by far-ri