Doctor: And that was how long ago?

医生：那是多久以前？

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The ultraviolet light could make it possible to determine how long ago oil had washed up in a given region, Kirby said.

Kirby说，紫外线能用来确定油污被冲到某一特定区域的时间。

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Herbert-Read says the next stage of the research would be to find out how long ago in fish evolution these rules evolved.

赫伯特·里德说下一步的研究是找出在多久以前鱼类进化出了这些规则。

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He described how the story of his family began long ago in Africa when slave traders captured one of his ancestors.

VOA: special.2010.06.28

- So what we're seeing is this is notes from 1902 -- he actually didn't publish any of this work or these ideas that led to Lewis structures until 1916, but his early class notes were used as evidence about how long ago he actually came up with the idea of it.

我们看到的这是，1902，年的讲义-,实际上他直到1916年才发表这些工作或者想法,后来发展成为了路易斯结构，但他早年上课的讲义却成为了他在多久之前,就产生了这个想法的证据。

麻省理工公开课 - 化学原理课程节选

I held off for a very long time, but I just got mine a month ago. And now I don't know how I live without it.

我拖了好长时间，一个月前才买的。而且现在我不知道离开它该如何生活。

没有智能手机活不了 - SpeakingMax英语口语达人

V. (how long ago was the miniseries Roots?), Tarantino is committing an act of conscience.

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My first flirtation with television was with an STV series called Into the Eighties - that's how long ago it was!

BBC: News | HARD CASH | Meet the Team

So scientists can clock how long ago HIV diverged from its chimpanzee ancestor.

NPR: Origin of AIDS Linked to Colonial Practices in Africa