形容词
中文翻译：Unknown
同义词：
['gray', 'brownish', 'russet']
例句：
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1. The old tree is covered in a grayish-brown layer of moss.
这棵老树覆盖着一层灰色至褐色的苔藓。
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2. The rug is a deep russet color that complements the furniture perfectly.
这块地毯是深褐色，与家具完美搭配。
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3. The sky was a mix of gray and brown, casting a somber mood over the city.
天空是灰色和褐色的混合，给这座城投下了忧郁的气氛。