The city is covered by a foul-smelling cloud of smoke.

城市被一团恶臭的烟云笼罩着。

《柯林斯英汉双解大词典》

A cloud of black smoke blew over the city.

一团黑烟拂过了这座城市。

《柯林斯英汉双解大词典》

One side was dense honeysuckle, and the other was open and slanted down to a telescoped view of the city. The white cloud was directly in front of them.

一边是浓密的金银花，另一边很开阔，向下倾斜，可以看到整座城市的缩影。那朵白云就在他们的正前方。

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This cloud strategy represents the first of the City's "enterprise, " or city-wide systems to migrate to the cloud.

ENGADGET: Microsoft to provide cloud services for city of Chicago in four year deal

With the cloud, the City is streamlining and consolidating these three systems into one, reducing outages, improving security and ensuring that all employees who need access to email and desktop applications have them.

ENGADGET: Microsoft to provide cloud services for city of Chicago in four year deal

"The cloud strategy gives City employees the ability to do their jobs more effectively while saving taxpayer dollars, decreasing duplication among departments and streamlining our operations across the board, " said Brett Goldstein, the City's Chief Information Officer and the Commissioner of the Department of Innovation and Technology (DoIT).

ENGADGET: Microsoft to provide cloud services for city of Chicago in four year deal