The number of Africans living in China has exploded from hardly any two decades ago to tens of thousands today.

住在中国的非洲人的数量已经从二十年前的几乎没几个人，爆炸式地增长到了现在的数以万计。

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In the past two decades, Jews have called it the City of David, a part of what thousands of years ago was the ancient Jewish capital.

过去二十年来，犹太人将这里叫作大卫城，那是几千年前古代犹太人首都的一部分。

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What boggles the mind is the way this kind of reproductive technology, which barely existed two decades ago, has fundamentally changed the way hundreds of thousands of people have children.

什么博格尔斯心就是这样一种这样的生殖科技，其中仅20年前存在，从根本上改变了成千上万人的数百名儿童的方式。

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(Sound) Twenty years ago, thousands of students braved riot police in Prague, demanding an end to decades of communist rule in what was then Czechoslovakia.

VOA: standard.2009.11.17

Maybe it begins with one of the hundreds of thousands of immigrants who, decades ago, made the tough journey to Angel Island.

WHITEHOUSE: President Obama Speaks at the Asian Pacific American Institute for Congressional Studies Annual Gala | The White House

Supporters of Ms. Hasina say the tribunal is needed to account for the violence four decades ago, during which tens of thousands of civilians died, many at the hands of Islamist militia.

WSJ: Bangladesh Arrests Pro-opposition Newspaper Editor

Supporters of Ms. Hasina say the tribunal is needed to account for the violence four decades ago, during which tens of thousands of people died, many at the hands of Islamist militia.

WSJ: Bangladesh Arrests Pro-opposition Newspaper Editor