You and your brother followed him some tens of years, and when your master died, you forthwith turned away from him.

子之兄弟事之数十年，师死而遂倍之。

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Numeralization commodity is an irrigorous legal phraseology newly appearing in recent tens of years, which has its distinct physical characteristics and legal property.

“数字化商品”是近几十年来新出现的一个非严谨的法律用语，它具有独特的物理特性和法律性质。

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Take a broader look at our species' place in the universe, and it becomes clear that we have an excellent chance of surviving for tens, if not hundreds, of thousands of years.

纵观我们物种在宇宙中的位置，我们可以清楚地看到，就算我们活不上几百年或几千年，也极有可能活上几十年。

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They formed little by little tens of thousands of years ago when sea levels dropped.

VOA: special.2010.11.10

And the company grew 80%per year for the first eight years compounded, and 60 % per year for the six years after that, which adds up to tens of billions real quick, as you know.

公司保持百分之八十的年增长,持续了八年，这之后的六年，每年增长百分之六十，正如你们所知，在很短的,一段时间内赚了数百亿。

斯坦福公开课 - 戴尔CEO-Michael.Dell谈创业和发展课程节选

These pieces can last for tens of thousands of years.

VOA: special.2009.09.09

We are frightened that once it has gone we won't get anything like it for tens of years.

BBC: Filey School swimming pool closure angers parents

True, we have a lot more choices (often aided by technology) about precisely how we do these things in the modern world but we are still built by a hundred thousand years or so of our own species, tens of millions of years of mammalian evolution, into ending up with slightly different brains and slightly different interests to go along with our very different gonads.

FORBES: How To Increase Business Profits: Go Sexist

They're retrieving a record of how the ice sheets have been behaving over the last tens of millions of years.

ECONOMIST: The South Pole as location and metaphor