记忆力减退是与老年相伴出现的。

Loss of memory is a natural concomitant of old age.

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对年过55岁的美国人来说，记忆力减退是唯一最大的恐惧。

Memory loss is the single biggest fear for Americans over the age of 55.

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当人们睡眠不足时，会出现注意力下降、记忆力减退以及思维僵化。

When people lose sleep, their concentration drops and they suffer memory lapses.

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不，自发生车祸后她的记忆力已大大减退了。

No, after the traffic accident she lost much of her memory.

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不，自发生车祸后她的记忆力已大大减退了。

No, after the traffic accident she lost much of her memory.

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