求翻译：美国东部时间2001年9月11日早晨8:40，四架美国国内民航航班几乎被同时劫持，其中两架撞击位于纽约曼哈顿的世界贸易中心，一架袭击了首都华盛顿美国国防部所在地五角大楼。而第四架被劫持飞机在宾西法尼亚州坠毁是什么意思？

EST on the morning of September 11, 2001, 8:40, four U.S. domestic civil aviation flights almost simultaneously hijacked two hit the World Trade Center in Manhattan, New York, an attack on the seat of the U.S. Department of Defense, Washington, DC, the Pentagon. The fourth hijacked plane crashed in

The United States Eastern Time on 11 September 2001 8:40 A.M. To 4 frame within the United States civil aviation flight was almost abducted, while two of them shock is located in Manhattan, New York's World Trade Center attack, a Washington, D.C. , the capital seat 5 United States Department of Defe

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United States Eastern time on September 11, 2001, all four United States domestic flight was almost at the same time taking, of which two hit is located in New York's World Trade Center in Manhattan, an attack on the capital, Washington, United States Department of Defense Pentagon, the seat. The fo

The American Eastern Time on September 11, 2001 morning 8:40, four American domestic commercial aviation scheduled flight nearly also is kidnapped, two hits is located the New York Manhattan's world trade center, has attacked the capital Washington US Department of Defense locus Pentagon.But fourth