名词
中文翻译：云影
同义词：
['cloud shadow', 'haze', 'mist']
例句：
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1. The sun was hidden behind the cloudy sky.
太阳被云层遮住了。
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2. The clouds were so thick that they obscured the moon.
云层非常厚，以至于遮住了月亮。
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3. The cloudy weather made it difficult to see the distant mountains.
多云的天气使得远处的山脉难以辨认。