Five years went by before he knew.

他5年之后才知道这件事。

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Five years went by before I knew it.

不知不觉，五年过去了。

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"It took me until I was fifty-five years old to think about all this in any detail," he went on, "and by that time I had lived through over twenty-eight hundred Saturdays."

他接着说：“我直到55岁才认真地去思考这一点。”到那个时候我已经度过了2800个星期六了。

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And another five, or seven, or eight years went by, and the treasurer job became even too big of a job, and he became in charge of investor relations.

几年以后，财务主管负责的工作也很多了，他就开始负责投资关系。

斯坦福公开课 - 戴尔CEO-Michael.Dell谈创业和发展课程节选

For every five years of continued smoking, the risk went up by 8%.

BBC: Light smoking 'doubles sudden heart death risk in women'