“许多科学家，”他说，“将性别视为一种连续统一体并且承认一些人确实天生就是中性的。”

Many scientists, he says, see gender as a continuum and acknowledge that some people naturally fall in the middle.

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事实上，我们天生就由自己的性别决定这一理论非常受欢迎，有关这一主题的书——《男人来自火星，女人来自金星》成为了全球畅销书。

Indeed, the theory that we are all hard-wired by our gender has proved so popular that a book on the subject, men are From Mars, Women are From Venus, became an international best-seller.

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性别：男人天生就比女人拥有多的肌肉和少的脂肪。

Gender: men naturally have more muscle and less fat that women do.

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