Robert Ralston. Heâ s a 21-year veteran of the Philadelphia Police Department, but heâ s about to lose his job.

他叫罗伯特·拉尔斯顿，是费城警察局一名有着21年丰富办案经验的警司，但他马上要丢掉自己的饭碗了。

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The study focuses on discussing the structure and factors of police 's job satisfaction which is expected to help improve the police' s psychological health and facilitate to the management.

本研究探讨警察的工作满意度结构和工作满意度的影响因素，期为提高警察的心理健康和警察的管理决策提供参考作用。

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"America's police need to do a better job letting everybody in America know there is a black market."

VOA: standard.2010.08.11

If criminal offences are clearly there, then it is the police's job to investigate them.

BBC: New Twitter abuse laws not necessary, say police

"It is South Wales Police's job to prepare for any eventuality, and we have done that, but I truly believe that fans have matured over the last decade or more and hope the event passes without any serious incident, " he said.

BBC: Call for trouble free derby match

The Recovery Act was designed to make sure that local school districts didn't lay off teachers and firefighters and police officers -- and it's done its job, and it's building the kind of infrastructure that we need to be competitive in the future.

WHITEHOUSE: President Obama Holds Online Town Hall on Health Reform