杜杜正在他常去的地方：博吉拉和桑菲尔街的中间，位于市中心和机场之间的丘陵发夹带的交叉口。

Du Du was in his usual spot: the middle of Borgela and Sans-Fil Streets, a hilly hairpin intersection between downtown and the airport.

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偶尔，人们会喊道“加油，杜杜！”

Occasionally, people shouted - "Go, Du Du!"

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但是杜杜没有这些。

But Du Du would have none of it.

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A real happiness smile, what's known as a Duchenne smile, after a neurophysiologist who studied it, involves moving the eyes.

真正开心的微笑是杜乡式微笑，在一个神经心理学者研究后发现，包括眨眼睛。

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He lived in the Tuileries palace along the Seine, which was burned in 1871 during the commune.

塞纳河畔的杜伊勒里宫,它在1871年被巴黎公社付之一炬

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So, you have two sorts of smiles: A real happiness smile a Duchenne smile--called--also known as the Duchenne smile, and then a Pan Am smile, or greeting smile.

所以，有两种微笑：,真正开心的微笑,杜乡式微笑，泛美式微笑，或问候式微笑。

耶鲁公开课 - 心理学导论课程节选