动词
中文翻译：变暗
同义词：
['darken', 'dim', 'darken', 'suffuse']
例句：
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1.The room was undarkened by the moonlight.
月光下，房间没有变得暗淡。
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2.The painting has a subtle effect on the surrounding darkness.
这幅画对周围的黑暗产生了微妙的影响。
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3. The sun had just set, and the sky was undarkened by the stars.
太阳刚刚落山，天空中没有星星的点缀。