When the switch is turned off by ageing and illness, memories fade.

研究发现，记忆之门会因肌体衰老或其他疾病而关闭，其结果是造成记忆力衰退。

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Memories fade with time, often to the annoyance of those who can't recall important details.

记忆会随时间流逝，想不起来过去的一些细节常常会困扰人们。

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For most of us, our memories fade as we age, and only the occasional song, smell or photo will take us back to a particular time and place.

对我们大多数人来说，除了偶尔被一些特定的歌曲、气味或照片带回某个场景，记忆总会随着年龄增长消退。

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That depends on how much sleep you get but dreams leave fragile memories. They fade quickly.

这要取决于你一晚睡多长时间,梦境会留下一些若有若无的记忆，而且很快会淡忘。

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And I forget where Napoleon actually dies, but he's got memories of getting sick and ill and the light begins to fade and he goes unconscious.

我不记得拿破仑在哪里去世了，但他有生病的记忆,生命之光慢慢变弱，然后失去了意识。

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Over time, the markets recover their losses, memories fade, spirits revive, and the action starts up again, until, eventually, it goes too far.

NEWYORKER: What Good Is Wall Street?

However, as memories fade and new reasons to be angry take their place, Bush's time in office might start to look comparatively benign.

CNN: Will history be kind to Bush?

Memories fade and become less accurate.

CNN: Indicting John Doe: When all you have is DNA