By day thin plumes of smoke hung against the sky like ragged grey ribbons.
白天，袅袅青烟如破烂的灰丝带高悬空中。
By the look of the heavy, grey sky, it would rain all day.
看看这黑沉沉灰蒙蒙的天，这雨可能要下一整天。
It was a grey autumn day and the sky was full of large black clouds.
这是秋日里灰蒙蒙的一天，空中积满了大团大团的乌云。
It was a grey autumn day and the sky was full of large black clouds.
这是秋日里灰蒙蒙的一天，空中积满了大团大团的乌云。
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