名词
中文翻译：Unknown
同义词：
['grey', 'gray', 'greyish', 'grayish-white']
例句：
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1. The sky is a deep grey, with heavy clouds gathering overhead.
天空是深灰色的，厚厚的云层聚集在上空。
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2. The old building is covered in grey paint, giving it a worn look.
这座老建筑被灰色油漆覆盖，给人一种破旧的感觉。
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3. The grass is turning to a light grey color, indicating the arrival of autumn.
草地变成了浅灰色，预示着秋天的到来。