sky 用英语:

Every cloud has a silver lining.

The whole soccer team was on cloud nine after winning the championship.

It's a good weather, there is only one cloud.

The clouds are getting darker.

That cloud bodes rain.

A cloud is a mass of vapor.

That room is filled with a cloud of cigarette smoke.

Viewed from a distance, the island looked like a cloud.

Done! says the angel, and disappears in a cloud of smoke and a bolt of lightning.

Do you see this cloud? It looks like a cow!

Her father's illness cast a cloud over her wedding day.

The weather is great: the sky is blue and there are no clouds.

cloud huge computers where companies like Apple, Facebook and Google store their users' pictures, videos and documents

It's cloudy

The words of the year 2010 in Denmark are "ash cloud", "Peripheral Denmark", "vuvuzela" and "WikiLeaks".