对于一个需要提供智能服务并节省资金的城市，该城市的部门则需要紧密地协作、分享他们的数据以及使用一个共同的信息技术基建设施。

For a city to offer smart services and save money, its departments have to work closely together, share their data and use a common it infrastructure.

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尽管最近出现了一些与法国分享一首航空母舰的疯狂言论，但就如何使用这样一个共同使用的航母的困难使的这一想法根本行不通。

Despite some excitable recent talk of sharing a carrier with France, the difficulty of agreeing what to do with such a Shared vessel make that idea unworkable.

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这个原理声称一个类的设计者和这个类的使用者，共同分享关于类的实现的假设。

This principle asserts that the designer of a class and the user of that class share assumptions about the class implementation.

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