为了获得更多的信息，看一下北美和英国的这些网站。

For more information check out the following sites in the UK and North America.

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老师均来自北美和英国。

Teachers from North America and the U. K.

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20强中唯一没在北美和英国的大学是位于苏黎世的瑞士理工学院。

The only university outside of North America and the UK in the top 20 is the Swiss Federal Institute of Technology, in Zurich.

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