A survey done by the China Youth and Children Research Center showed that school accidents kill more elementary and middle school students than anything else.

中国青少年研究中心的一项调查显示，学校事故是导致小学生和中学生死亡的最大原因。

youdao

Our home is near the historic city center of Beirut, Lebanon, a large city in the Middle East.

我们的家在历史城市黎巴嫩贝鲁特的中心附近，是一个中东的大城市。

youdao

I'm somewhere in the center of the middle.

我在中产中心的某个地方。

youdao

Jon Alterman is head of the Middle East program at the Center for Stategic and International Studies in Washington.

VOA: standard.2009.06.02

Jon Alterman is director of the Middle East Program at the Center for Strategic and International Studies.

VOA: standard.2010.06.29

"It's a long awaited step." Paul Salem,who heads the Beirut-based Carnegie Middle East Center, thinks that President Obama's trip to Cairo is likely to have positive reverberations across the Arab world.

VOA: standard.2009.05.09

Academics: Have you ever heard of the Princeton Center for Middle Class Studies?

CNN: Carville: What if the rich lost 40% of their wealth?

Bruce Riedel, a senior fellow at the Saban Center for Middle East Policy, says it's too late for the U.S. to rely on Musharraf alone.

NPR: Musharraf's Party Takes Pounding in Election

He's director of the Saban Center for Middle East Policy at the Brookings Institution and a former assistant secretary of state for Near East Affairs.

NPR: The U.N., the U.S. and the Middle East