I think that is a bit different, grounding all air traffic is not because
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送交者: steven 于 2008-01-29, 12:10:09:
回答: 美国911后全天空封锁，布什是怎么跑来跑去的？ 由 4U4luC2 于 2008-01-29, 11:52:02:
aircrafts were unable to take off. In this case, I am not sure, because of the weather, flying an aircraft through the storm may be too danger.
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