目前还没有关于究竟有多少航班被取消或延误的完整报告。
No complete report of how many flights were delayed or canceled was immediately available.
美国处理飞行计划的电脑系统星期四出现故障，导致许多航班被取消及数小时的延误。
A problem in the computer system that collects airline flight plans from across the United States caused widespread flight cancellations and hours of delays Thursday.
北京的主要机场因大雪被迫关闭，导致航班延误数日或被取消，不过现在机场已经重开。
Beijing's main airport has reopened after heavy snow caused several days of flight delays and cancellations.
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