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Red squirrels live high up in trees, while grey squirrels spend more of their time on the ground.

红松鼠生活在高高的树上，而灰松鼠则大部分时间生活在地面上。

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Now we could see the grey sand of a beach, and the spare white limbs of trees on the foreshore, gaunt survivors of the desiccating effects of wind and sun.

现在我们可以看见灰色的沙滩，还有湖边白色的树干，在阳光暴晒和风吹双重催干作用下幸存下来，尽管已经瘦弱不堪。

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It is a drab autumn day in the 1980s: the skies are grey, the streets glisten with rain, the trees are bare.

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Whitebeam trees marked the path to right and left, with their grey-green upper leaves and their sharp silver unders.

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In the midst of a cacophony of cars and cabs on the historic cobblestones at Gansevoort Street is a grey metal staircase leading up to a zone of relative quiet amid a grove of birch trees.

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