外交，一个国家在国际关系方面的活动，而国与国之间的合作都是在一次次外交活动中达成，为国家繁荣发展不可缺少的一部分，是国与国之间链接的纽带。看《扭转世界的100次外交》，回味张骞的西域之行，再看丘吉尔的铁幕演说，无不改变了世界的发展史。
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