The second day, God made sky and clouds.

第二天， 神造了天空和云彩。

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The clouds had spread and covered the entire sky.

乌云铺开，遮蔽了整个天空。

《柯林斯英汉双解大词典》

It was a lovely afternoon with a blue sky and a few fleecy white clouds.

那是个美丽的下午，蓝蓝的天空中飘着几朵轻软的白云。

《柯林斯英汉双解大词典》

As the sky darkened and storm clouds gathered on the horizon, our jeep turned towards home.

BBC: The Serengeti in the off-season

They reflect sky, clouds and each other in fractured images and with a shimmering brilliance that has nothing to do with, or any need for, architectural distinction.

WSJ: How Less Became More

Goux at his window, watching clouds float through the sky over Paris and comparing them unfavorably with certain clouds in paintings by Pissarro or the clouds in his nightmare.

NEWYORKER: Labyrinth