动词短语
中文翻译：使暗化
同义词：
['darken', 'darken', 'dim', 'obscure', 'obscure', 'obscure']
例句：
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1. The room was so dark that we couldn't see each other clearly.
房间太暗了，我们看不清彼此。
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2.The moonlight could only just illuminate the path ahead.
月光只能勉强照亮前方的路。
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3.The forest was densely packed with trees, making it difficult to see anything beyond a few feet.
森林里树木密集，使得视线很难超过几英尺远。