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对于2001年发生的美国9·11恐怖袭击事件,对世界人民来说至今仍十分清晰,仿佛还是昨天。对美国来说,此次事件是对美国防空系统的一次打击,也让他们听到了轰鸣的警钟声,同时也是世界军事强国的奇耻大辱。
The U.S. terrorist attacks on the United States in 2001 are still very clear to the people of the world as of yesterday. For the United States, the incident was a blow to the U.S. air defense system and letting them hear a roaring alarm and a shame on the part of the world's military powerhouse.