Major question in the archaeology of the southwestern region of the United States is why so many impressive settlements, and even entire regions, were abandoned in prehistoric times.

美国西南地区考古学的主要问题是：为什么这么多不俗的定居点，甚至整个西南地区，都在史前时代被遗弃了呢？

youdao

A major question in the archaeology of the southwestern region of the United States is why so many impressive settlements, and even entire regions, were abandoned in prehistoric times.

美国西南地区考古的一个主要问题是，为什么这么多令人印象深刻的定居点，甚至整个地区，在史前时代就被废弃了。

youdao

Some suggest nothing was done after that, but that is grossly unfair if you see what WHO regions and Member States did in the first few years afterwards.

有人提出，此后未做任何事情。但是，看看世卫组织各区域和会员国在随后头几年中的所作所为，就可知道这种说法极为不公正。

youdao

Dr.Katherine Kahn and fellow researchers studied these patients from five regions of the United States.

VOA: standard.2010.03.18

As a result,the United States needs radar installations and anti-missile launch sites in key regions, particularly in Central Europe to counter the growing missile threat from Iran.

VOA: standard.2010.03.26

As the U.S. presidential campaigns get underway, Lexalytics will relaunch its political analysis with politicaltrends.info to show who is doing well in by regions and states.

FORBES: Text Analytics Show Why Bellagio Underperforms Bally's

In the current economy, there are vast gulfs between the employment pictures in different regions and states, from 12% unemployment in Nevada to 3% unemployment in North Dakota.

WSJ: Renting Prosperity

The end of stimulus as well as the power shift in Congress will have a profound effect on which regions and states can position themselves for the longer-term recovery.

FORBES: Education Wars: The New Battle For Brains