名词
中文翻译：云层
同义词：
['cumulonimbus', 'cumulonimbus cloud', 'cumulonimbus stratus']
例句：
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1. Theweather forecast indicated a chance of thunderstorms in the cumulostratus layer.
天气预报显示，在积云层有雷暴的可能。
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2. The pilot noticed the cumulostratus formation and made an emergency landing.
飞行员注意到了积云的形成，并紧急着陆。
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3. The cumulostratus clouds were so dense that they blocked out the sun.
积云层如此密集以至于遮蔽了太阳。