Geysers erupt when sunlight evaporates volatile deposits of nitrogen, and a thin atmosphere of nitrogen holds tenuous clouds in weather patterns that change with Triton 's seasons.

但是这样一个冰冻的世界却惊人的鲜活。间歇泉喷发时，易挥发的氮气沉淀物在阳光作用下蒸发，薄薄的氮气层随特里同上的季节变换展现出不同天气的云层。

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Buy.com's tenuous turnaround is another upset in an unstable industry.

FORBES: The Death and Life of Buy.com

Last month, under government pressure, troubled SeoulBank lent yet more money to Dong Ah group, South Korea's tenth-biggest conglomerate, or chaebol, at rates hardly justified by the firm's tenuous condition.

ECONOMIST: Reform in South Korea

Keeping the old rodeo rider up at nights was America's tenuous hold on its manufacturing base, which was slip, slip, slipping away, as if off a Brahman bull, and mostly to Japan.

FORBES: Digital rules