名词
中文翻译：高层云
同义词：
['高云，高层云层例句：1. The high level cloud was so dense that it blocked out the sun.（高层云非常密集，以至于遮住了太阳。）']
例句：
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1. The high level cloud was so dense that it blocked out the sun.
高层云非常密集，以至于遮住了太阳。
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2.High level clouds are often associated with rainy weather.
高层云通常与雨天有关。
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3.The high level cloud formations were a sign of approaching storms.
高层云的形成是即将到来风暴的迹象。