我们头顶的一片天，一片云，不管看起来多高多远，也不会比地平线更远。

Everything we see above us, the vast stretches of clouds, no matter how high they look, are not that far away — no further than the horizon. Ours is a geometrically small world, says Eric.

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他的脚下踩着又干又脆的雪，树枝上也堆着一簇一簇的积雪，头顶上空是一片蔚蓝的天，这就像人们在冬天晴朗的早晨看到的那种天上的颜色。

There was crisp, dry snow under his feet and more snow lying on the branches of the trees. Overhead there was pale blue sky, the sort of sky one sees on a fine winter day in the morning.

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