回忆过去的时候，我们就变成了敏锐的时间旅者，过往的那些情景，声音，事件，感觉——都像白驹过隙一样。

Thinking backwards we become sensory time travellers; recalling sights, sounds, events, emotions - all in the blink of an eye.

youdao

当我们回忆过去的事情的时候，至少有一些同样的神经元重新放电，发生在我们身上的有效的事情触发了大脑中的神经元网状系统。

Effectively things that happen to us activate networks of neurons in the brain, and when we recall past events at least some of these same neurons fire again.

youdao

他的记忆力一直很好，尽管六七十高龄，还是有条有理，很少忘事儿，他对此是多么骄傲啊。可是现在，他希望能够完整回忆过去的时候，记忆却悄悄溜走了。

He was so proud to have retained into his 60s and 70s a well-organised and seldom-failing memory, and now, just when he would hope to think back on his life with total recall, it's slipping away.

youdao