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从申奥成功开始,安保准备就被提上重要日程。七年间,他们为奥运安全做了哪些周密安排?有什么神秘装备会为奥运保驾护航?
Since the successful bid for the Olympic Games, security preparations have been put on the important agenda. In the past seven years, what kind of arrangements have they made for the safety of the Olympic Games? What mysterious equipment will escort the Olympic Games?