我们可以用眼睛和面部表情来如实地传达情感上的每一丝细微差别。

We can use our eyes and facial expressions to communicate virtually every subtle nuance of emotion there is.

《柯林斯英汉双解大词典》

有一则报道讲述了一个完全失明的男孩，可以用面部视觉围绕他家附近的楼栋快速骑三轮车。

One report tells of a totally blind boy who could ride his tricycle at good speed round the block near his home, using facial vision.

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这意味着：他们用眼睛微笑(面部上睑提肌肌肉的收缩)，而不仅仅是他们的嘴。

And they mean it: they smile with their eyes (a contraction of the orbicularis oculi facial muscles), not just their mouths.

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the face being drawn back in a universal expression that every human everywhere would be able to recognize.

用一种普遍的面部表情，脸被后拉,任何地点，任何人都能辨认。

耶鲁公开课 - 心理学导论课程节选