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上个世纪80年代中叶,冷战已接近尾声,但美、苏两个超级大国的导弹发射系统及有关军事人员仍旧日夜处于警戒状态,
In the mid-1980s, the Cold War was coming to an end. However, the missile launching systems and related military personnel of the two superpowers in the United States and the Soviet Union remain vigilant day and night.