求翻译：现实主义和理想主义是西方国际关系理论中最重要的两个流派，对美国外交政策的制定和执行具有深刻的影响。冷战后美国外交政策的演变，呈现出理想与现实相互交织、此消彼长的特点。实质上，美国是在维持自身全球主导地位的根本目标下，灵活运用两种外交理念，理想为手段，权力为目标，以此寻求短期国家利益与长远全球理想间的巧妙平衡。是什么意思？

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realism and idealism, the Western theory of international relations, the most important of the two genres, and to United States foreign policy formulation and implementation has a profound impact. After the Cold War foreign policy of the United States has evolved, the ideal and the reality are inter

The realism and the idealism are in the Western international relations theory the most important two schools, has the profound influence to the US foreign policy formulation and the execution.After the cold war the US foreign policy evolution, presents the characteristic which the ideal and the rea

Realism and idealism are two of the most important in Western international relations theory schools of United States foreign policies and their impact on the implementation. The post-cold war United States foreign policy evolution, showing ideal and reality intertwine, the characteristics of this t

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