这幅几乎完美无暇的金晶体的图片是西班牙马德里大学的维奥利塔·纳瓦罗通过原子力显微镜捕捉的。

This image of a nearly flawless gold crystal was captured by Violeta Navarro at the University of Madrid with an atomic-force microscope.

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除了在美国大学教授课程外，他还在西班牙马德里呆了一个学期。

In addition to his college courses in the U.S., he spent a semester abroad in Madrid, Spain.

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那是2002年的春天，我正在西班牙马德里西部的大学城萨马兰卡留学。

It was spring 2002, and I was studying abroad in Salamanca, Spain, a university town west of Madrid.

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