masturbate

In actual fact, many adults also masturbate, and this includes married couples.

实际上, 许多成年人也会自娱, 而且包括已婚夫妻在内.

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Both females and males may learn to masturbate all by themselves while still in their infancy.

当仍在婴儿期,男女都可能自己学会自娱.

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