In some of the pictures, the tops of the nearby Woolworth Building and other skyscrapers can just be seen above the enormous cloud of debris, gray against a clear blue sky.

在这些照惩中，这伍尔沃斯大楼的顶部和其它的摩天大楼仅仅看到巨大的瓦砾堆上的烟，灰色笼罩了明净的蓝天。

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Unlike a crystal of the blue sky, but people faint gray eyes, is simply dirty feeling.

天空不像是明澈的蓝，而是让人眼昏的灰，简直是肮脏的感受。

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Recently, back home in Xuchang, the sky is blue, not white or gray, do not see the thick haze, the heart is very happy.

近日回了老家许昌，天还是蓝的，不是白色或灰色，也不见了浓重的霾，心中甚是高兴。

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The Cumberland Mountains of Tennessee rose blue-gray in the afternoon sky.

VOA: special.2009.11.14

But there was a band of blue sky just above the gray, the blue you see in tropical postcards, the blue of the Mediterranean.

NEWYORKER: Beginners

The water reflected the gray-blue of the darkening sky, and the lights of the water-pumping stations had come on, making them look like a line of floating gazebos.

NEWYORKER: Great Experiment

The curtainless windows were rectangles of electric-blue sky that turned to gray and then normal daylight as the patients rose and slowly, in their thin striped cotton robes, began wandering down the corridor that led into the common room.

NEWYORKER: The Reptile Garden