The three players in the back row are called left back center back and right back.

后排的三名是左后卫、中后卫和右后卫。

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Scientists at the Goddard Space Flight Center in Greenbelt,Maryland, found the substance glycine in material brought back to Earth from a comet.

VOA: special.2009.09.30

So ever since then and when I came back to Princeton, then we formed a center to study those problems.

所以从那以后，在我回到普林斯顿大学时，我们组成了一个中心研习这些问题。

普林斯顿公开课 - 人性课程节选

It is, in other words, a center which is outside the structure: "a center which is not a center," and we'll come back to that in a minute.

换句话说，它是结构之外的中心：,“不是中心的中心“,我们马上会再谈到。

耶鲁公开课 - 文学理论导论课程节选

The massive risk-asset rally generated by a global central bank liquidity-bailout on Wednesday pushed gold back onto center stage.

FORBES: Gold Revving Engine To Jump Start Rally All The Way To $2,025

Cyprus' struggle to secure international assistance in rescuing its financial sector has brought the euro area's debt saga back to center stage.

WSJ: Stocks Fall Globally as Investors Worry What's Next in Euro Zone

Now it's back at center stage, while unemployment remains at 9.7% and virtually every economist in the country is predicting a slow recovery at best.

FORBES: Magazine Article