translation.en: Mimicking a smile and experiencing it physically helps us understand whether our smile is fake or real, so we can understand the emotional state of the smiler.
translation.zh: 对微笑进行模拟 和物理测试 能够让我们分辨微笑是真是假 进而了解 微笑者的情绪 法国克莱蒙费朗大学