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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DEEP brain stimulation has long been psychiatry's black magic: stick electrodes into a region linked to mental illness, deliver rapid pulses of weak current, and voila!

脑深部刺激一直是精神病学的魔术：用电极植入精神病相关的区域，用具有快速脉冲弱电流刺激，然后，哇！

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The shockingly rapid deterioration in health experienced by women in poor black neighbourhoods also directly affects mothers.

黑人贫困区女人健康状况以不可思议的速度退化，这一状况同样直接对母亲们产生影响。

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In the beginning, mayoral gains were mainly in cities with black majorities or areas of rapid transistions to large black populations.

CNN: From Protest To Politics

No one ever said investing was easy, even for the math wizards who gave us the rapid fire, black box, quantitative investing model.

FORBES: Boston Robo-Trader Chooses Cash Over Equity

Black carbon is said to be a significant source of rapid warming in the northern United States, Canada, northern Europe and northern Asia.

BBC: Climate change: Soot's role underestimated, says study