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13 天
吻的起源:人类为何以吻传情?
摘要“吻”一直是跨越不同大陆和文化、表示特别情感的象征。无论何时何地,社会规范总是将吻与特定关系和情境联系起来,暗示其背后可能有更深的生物学基础。那么,为什么吻要通过嘴唇的突出和轻微的吸吮来表现呢?比如,卷尾猴会用手指戳朋友的眼睛表示亲密,而人类却演 ...
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