Despite the chill, this image reveals that the clouds were made of water, not ice.

尽管天气寒冷，这张照片显示云仍然是由水组成的而不是冰。

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They salted clouds with dry ice.

他们把干冰撒向云彩。

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Clouds are made of water or ice.

云是由水和冰组成的。

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Clouds are made of water or ice.

云是由水战冰组成的。

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Clouds are made of water or ice.

云是由水战冰组成的。

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