求翻译：In 1979, the political cooperation between the United States and China was rooted largely in our shared rivalry with the Soviet Union. Today, we have a positive, constructive and comprehensive relationship that opens the door to partnership on the key global issues of our time -- economic recovery and the development of clean energy; stopping the spread of nuclear weapons and the scourge of climate change; the promotion of peace and security in Asia and around the globe. All of these issues will be on the agenda tomorrow when I meet with President Hu.是什么意思？

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