Moreover, speed cameras are cost-effective as they take highly-paid police officers off traffic duty, allowing them to do more important things.
而且，从成本效益的角度来看，超速摄影机也是一个不错的选择，因为它们使那些受高薪聘用的警员可以离开交通岗位到更重要的岗位上去工作。
Moreover, speed cameras are cost-effective as they take highly-paid police officers off traffic duty, allowing them to do more important things.
而且，从成本效益的角度来看，超速摄影机也是一个不错的选择，因为它们使那些受高薪聘用的警员可以离开交通岗位到更重要的岗位上去工作。
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