Thanks to the science of climate change, we now understand only too well how contingent our human wellbeing is on the "health" of the Earth's systems of energy exchange.

多亏气候变化学，我们现在非常了解，我们的健康是多么依赖于地球能量交换系统的健康。

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The eye-movement-contingent display change technique was used in this study to explore the perceptual span of the fifth graders.

采用“呈现随眼动变化技术”对小学五年级学生的阅读知觉广度进行了眼动研究。

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Our capacity for meaningful change is contingent on understanding the nature of the problem.

WSJ: The War on Drugs Itself Is Causing Most of the Damage

The presumptive limelight would bring a welcome change for Washburn, 34, who has often found himself part of a tiny media contingent on the green since he began reporting on the tournament in the summer of 2006.

CNN: Golf struggles to make mark in China

For Zweig, behavior is contingent on circumstance: time and again, protagonists declare themselves powerless to change a course of action.

NEWYORKER: The Escape Artist