Snow fell gently from gray clouds.

白雪从灰蒙蒙的云层中轻轻地飘落。

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The sky was barred with gray clouds.

天空满布着灰色的云层。

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Then, suddenly, gray clouds.

然后，突然，乌云密布。

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Gray clouds filled the sky.

天空布满了灰色的云层。

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Gray clouds filled the sky.

天空布满了灰色的云彩。

youdao

Gray clouds filled the sky.

天空布满了灰色的云彩。

youdao