The gas breaks down in ultraviolet light from the sun, leading scientists to wonder how methane is being resupplied into the moon's atmosphere.

这种气体会在太阳紫外线照射下分解，这就让科学家们迷惑了：这个星球大气中大量甲烷是如何被补充的呢。

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Break in the sun till the sun breaks down.

在阳光里坠地直到太阳坠落下去。

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But in the middle of the day the sun breaks through, evaporating the mist on the grass, butterflies and wasps appear and cobwebs glisten against windows like silver lace.

但是在正午时分，太阳从云层中钻出来，草丛中的雾气不一会就蒸发了，蝴蝶和黄蜂到处飞舞，映在窗户上的蜘蛛网像银线花边一样闪着光亮。

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The National Weather Service advises residents to wear lightweight and loose-fitting clothing, drink plenty of water, take frequent breaks in shaded or air-conditioned environments, stay out of the sun and check on relatives and neighbors.

CNN: Heat wave sweeps across U.S. Northeast

But watching and waiting in the sun is no easy task, and snacks and water breaks are hard to come by.

BBC: Meet India's latest Games recruit - Chhotu the monkey