２００１年９月１１日，美国纽约、华盛顿等地区遭恐怖袭击，纽约世贸大厦遭袭击后引发了严重的火灾，大量的人员被困在二三百米高的楼层求救。当地消防人员冒着大楼倒塌的危险，冲上大楼救人灭火，结果在大楼倒塌时，３００多名消防人员不幸殉职。这一事件引起全世界极大的震 On September 11, 2001, terrorist attacks in New York, Washington and other areas of the United States led to a grave fire after the World Trade Center in New York was attacked. A large number of people were trapped on the floors of 2,300 meters for help. Local firefighters ran the risk of the building collapsing and rushed to the building to save people and fire. As a result, more than 300 firefighters died of unfortunate death when the building collapsed. This incident caused tremendous earthquakes around the world