These pieces can last for tens of thousands of years.

VOA: special.2009.09.09

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

In May,Sri Lankan forces soundly defeated the rebel terrorist group, ending 27 years of war that cost tens-of-thousands of lives.

VOA: standard.2009.09.01

Tens of thousands of Scouts from all 50 states and 26 other countries come to the United States every four years for 10 days of adventure and fun.

VOA: standard.2010.07.31

Addressing the assembly, Cuban Foreign Minister Bruno Rodriguez called the embargo an "act of arrogance" and said it has cost the Cuban economy tens-of-billions of dollars over the years and deprived children of needed medical care.

VOA: standard.2009.10.28