乒乓外交在美中关系史中发挥了重要作用。

Ping pong diplomacy played an important role in the history of U.S.-China relations.

“东方问题”是近代国际关系史中的一个重大问题。

The "eastern question" is a significant issue in the modern history of international relations.

这是人类不断汲取的一个教训，我们两国的关系史中也不乏其例。

That is a lesson that human beings have learned time and again, and that is the example of the history between our nations.

旧唐书中有专门一个章节是关于阿拉伯帝国早期历史，以及10世纪前的中国-阿拉伯关系史。

The Jiu Tang Shu has a specific chapter recording the early history of Arab Empire and Sino-Arab contact before the beginning of 10th century.

李·约瑟在近代中外关系史及文化教育交流史上是一位具有特殊地位的人物。

Joseph Needham played a special and important role in the history of cultural and educational exchanges between China and foreign countries.