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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In Alice in Wonderland, the Cheshire Cat disappears and all we have left, the last thing that disappears, is the smile.

在《爱丽丝漫游仙境》里面,笑脸猫消失不见了而剩下的,最后一个东西,就是微笑

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If it's a true happiness smile, that's actually bodes better for the relationship than a Pan Am, or greeting smile.

如果是一个真正开心的微笑，对这段感情来说是个好兆头,比问候式微笑好的多。

耶鲁公开课 - 心理学导论课程节选

But another clue is the sort of smiles they give when they see each other when they walk into the lab.

但另一个线索是他们给出的微笑,当他们走向实验室时碰到对方。

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If you try to imagine a smile with no body at all, it can't be done. Why?

如果你要相信一个没有身体的微笑,那是根本做不到的 为什么呢

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Try to imagine a world in which somebody's smile exists but their body doesn't.

试图想象一个世界里某人的微笑存在,而身体不存在

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