Prior to 200 B.C., a number of relatively small centers coexisted in and near the Valley of Mexico.

在公元前200年以前，在墨西哥峡谷内部及周边有很多相对较小的城镇中心共存着。

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In many countries there are a few natural bottlenecks, whether it be large data centers or right-of-ways."

VOA: special.2011.02.21

But can you see that the centers of electron deficiency lie on a sphere equidistant from the center?

但你看得到么,缺电子的地方分布在,与中心等距的一个球面上？

麻省理工公开课 - 固态化学导论课程节选

Joshua Greene Or people like a very young Joshua Greene, who does a research on morality and shows that we have morality centers in our brain.

或年轻的，他对道德进行研究,显示大脑里有道德中心。

哈佛公开课 - 幸福课课程节选

"There is nothing about this case that is rational or makes any sense, " attorney Bryan Konoski told jurors in a closing argument in a trial that centers on a schizophrenic killer's state of mind.

WSJ: Closing arguments start in NY meat-cleaver killing

Insofar as there is a plot, it centers on a gloomy fellow, played by Suleiman himself, who has a harassed father (Nayef Fahoum Daher) and a disarmingly beautiful beloved (Manal Khader).

NEWYORKER: Divine Intervention

The agency cited another study, a 2007 Centers for Disease Control and Prevention population-based report, that estimated acetaminophen was the likely cause of most of the estimated 1, 600 acute liver failures each year.

CNN: FDA advisers vote to take Vicodin, Percocet off market