There might be a massive black hole at the center of our galaxy swallowing up stars at a very rapid rate.

在我们银河系的中心很可能存在着一个巨大的黑洞正以极快的速度吞食着星球。

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If you crave structure, look into courses at a community center or college where you may be able to audit at a reduced rate.

如果你喜欢建筑，那么在当地社区中心或大学看看有没有相关课程可以让你能少花钱旁听一下。

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The Robert Koch Institute, Germany's national health center, said the rate of reported infections appeared to be tapering off.

德国国家健康中心Robert Koch研究所说感染的报告趋势已经趋向结束。

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The center says September Arctic sea ice is decreasing at a rate of more than eleven percent every ten years.

VOA: special.2009.10.27

Moreover, the 1-5 scale used by the center to rate fire danger and preparedness was raised from 3 to 4.

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While birth rates for almost all other age groups are at historic lows, according to a 2012 report from the National Center for Health Statistics, the rate for women in their late 30s and early 40s is on the rise.

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The center is meeting its performance standards, and its 77% retention rate is more than twice as good as Sprint's call center in the Kansas City suburbs.

CNN: Dressed For Success