The sun disappeared behind the cloud.

太阳在云层后面消失了。

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The sun emerged from behind the cloud.

太阳从云彩后面出来了。

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One afternoon, while the sun hides behind the cloud, I listen to the pity along my walk.

某日的下午，羞涩的太阳躲在云后，我倒转时光，饱听惜日的诉说。

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The two lapses, though unconnected and different in nature, have raised the question of whether customers can really trust the basic idea behind the cloud that you can buy computing services from the internet, just like gas or water from a utility (see article).

ECONOMIST: Cloud computing's growing pains

Most of the music processing technology behind Zya is in the cloud, so it only requires a small download.

FORBES: Create Your Own Music With Zya: My Favorite Product From SXSW [Video]

The business model behind cloud services is similar to the business model behind established communications network services.

FORBES: Magazine Article