The birds move constantly, slowly rotating from the cold outside rings to the warm, wind-free center.

这些雄帝企鹅不断地移动着，从寒冷的外圈慢慢地转动到温暖无风的中心部位。

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Huddle forms when hundreds, even thousands, of males crowd together.The birds move constantly, slowly rotating from the cold outside rings to the warm, wind-free center.

当成百上千只雄帝企鹅挤在一起时就形成了一个大“团”。这些雄帝企鹅不断地移动着，从寒冷的外圈慢慢地转动到温暖无风的中心部位。

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"It's very puzzling," says free market economist Veronique de Rugy of the Mercatus Center at George Mason University.

乔治梅森大学墨卡托斯中心的自由市场经济学家维罗妮克·德鲁吉表示：“这非常令人费解。”

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People cheered wildly as General Charles de Gaulle and Free French troops marched into the center of the city.

VOA: special.2011.06.16

Did people on the reactive center gets lazy and complacent after defending free markets after 1989?

控制局势的人士,是否变得懒惰和自满,在1989年为自由市场辩护后？

斯坦福公开课 - 经济学课程节选

Charles Haynes is a senior scholar at the First Amendment Center, a group that studies free expression issues.

VOA: special.2009.12.24

Local in-person tax preparation and filing assistance at free local tax help centers (find a free center near you using the zip code tool) or call 2-1-1 to schedule an appointment.

FORBES: If You Qualify, File Your Taxes For Free

After the Asian tsunami ESRI India set up, for free, a center in Cuddalore in Tamil Nadu in the south to map the villages that were affected and offered information on the population of each village and the damage sustained.

FORBES: Map Mania

The designs free up space in center consoles for storage space and controllers that operate multimedia systems.

WSJ: Changing Gears: Auto Makers Ditch Familiar Shift Levers