Each time we use a facial muscle, a groove forms beneath the surface of the skin, which is why we see lines form with each facial expression.
每当你使用面部肌肉的时候，皮肤下就会形成一道凹槽，这就是你作表情的时候，脸部出现线条的原因。
To prove his point, he took a series of portraits, using the same model's facial expression and the same lighting - but each time changing the lens.
为了证明他的观点，他利用相同的照明条件，为一位模特的同一面部表情拍摄了一组肖像照，但是每照一张就更换一种镜头。
If you take a closer look, you'll find that each warrior has a different facial expression and manner.
如果你仔细观察，你会发现每个武士都带有不同的面部表情和举止。
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