求翻译：包括美国纽约的标志性建筑世界贸易中心在内的六座双塔被完全摧毁，其它23座高层建筑遭到破坏，美国国防部总部所在地五角大楼也受到袭击，美国经济同样遭到严重打击。该事件也导致了此后国际范围内的反恐行动，是什么意思？

Six, including New York's landmark World Trade Center twin towers was completely destroyed, the destruction of the other 23 high-rise buildings, the U.S. Department of Defense headquarters, the Pentagon were attacked, the U.S. economy also suffered a severe blow. The incident also led to a subsequen

including New York, the United States flag of the World Trade Center building in the 6 seat twin towers were completely destroyed, and the other 23 is a high-rise building was destroyed, the United States Department of Defense headquarters at the Pentagon may also be subject to attack, the United St

Are destroyed completely including the American New York's symbolic construction world trade center six double towers, other 23 high-rise constructions are destructed, the American Department of Defense Headquarters locus Pentagon also receive the attack, the American economy encounter the serious a

Including United States New York City attractions, including six World Trade Center twin towers were totally destroyed and 23 other high-rise buildings were destroyed, United States Department of Defense headquarters in the Pentagon attack, United States economy have also been badly hit. Within the

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