As a subsystem of city system, public sites play a more special role in the operation of city than other Spaces.

城市公共空间作为城市的一个空间子系统，较之与其它空间系统其在城市中的地位是独特的。

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Subway line 2 will be in operation in 2011. Several other lines are also under construction or in the planning process. For now the buses and taxis can take you to around the city.

地铁2号线将在2011年运作，其他的线路还在计划和施工阶段，现在公交和出租可以带你到西安的任何地方。

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The new Esplex operation will be in the Polish city of Wroclaw, which is already a base for other computer companies including Siemens and Hewlett Packard.

BBC: Jobs go as firm moves to Poland

Operation Christian was set up to tackle prostitution in the city 18 months ago, forming a partnership between police and other agencies.

BBC: NEWS | UK | England | Coventry/Warwickshire | Police 'success' in vice campaign