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2001年9月11日上午,2架被劫持的民航客机分别撞向美国纽约市世界贸易中心1号楼和2号楼,2座大楼被撞后相继坍塌,周围5座建筑物也因此受损。9时许,另一架被劫持的客机撞向位于维吉尼亚州的美国国防部五角大楼,大楼遭到局部破坏,部分结构坍塌。时间过去16年,经验教训总结不断地深入,对我们仍然有很多借鉴意义。
On the morning of September 11, 2001, two aircraft hijacked by civil aviation crashed into the World Trade Center, Building 1 and Building 2, New York City respectively. Two buildings collapsed one after another and five buildings were damaged in the vicinity . At 9 am, another hijacked passenger plane crashed into the Pentagon of the United States Department of Defense in Virginia. The building was partially damaged and some of the structures collapsed. Over the past 16 years, the lessons learned continue to deepen, and we still have a lot of reference.