形容词
中文翻译：Unknown
同义词：
['dark', 'gloomy', 'dim', 'shadowy']
例句：
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1.The room was filled with the smell of old books and the atmosphere was quite ___.
房间充满了旧书的气味，气氛相当阴暗。
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2. The sun had set behind the mountains, leaving the sky in a state of___.
太阳落山后，天空一片黯淡。
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3. The forest was shrouded in darkness, making it difficult to see what lay ahead.
森林被黑暗笼罩，很难看清前方的情况。