Mental functions decline especially rapidly in the last four years before death.

精神功能衰退在死前的最后四年尤为迅速。

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Mental abilities decline with age more in men than in women.

随着年龄增长，男性性能力衰退的速度要快于女性。

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Mental abilities decline with age more in men than in women.

随着年龄增长，男性性能力衰退的速度要快于女性。

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