The models present a "very crude" first look at these structures, adds physical chemist and co-author Peter Hamm of the University of Zürich in Switzerland.

这些模型展示了一个“很粗糙的”看待这些结构的方法。

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Psychologist Ernst Fehr of the University of Zürich, Switzerland, cautions, however, that the paper doesn't really address which behavior is rational or irrational.

但是心里学家Ernst Fehr则强调，这篇论文中并没有真正区分出哪些行为是理性的或非理性的。

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