The dark clouds in the sky meant that a storm was coming.

天空中的乌云预示暴风雨即将来临。

《牛津词典》

There are no clouds in the sky.

万里无云。

《新英汉大辞典》

There are a few clouds in the sky. But it is sunny.

天空中飘着几朵云，但阳光灿烂。

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Mr. JERMAINE JACKSON: When there are clouds in the sky, you'll get by if you smile.

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There are fewer clouds in the sky and the sun is finally starting to shine a little brighter.

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We were into open country now, running straight up the coast about a mile from the ocean on a two-lane blacktop road across the dunes with no clouds in the sky and a full moon blazing down on the Pacific.

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