单语范例（未经PONS编辑处理）
英语
- They are usually based at police stations which are central to the operational area.en.wikipedia.org
- It will depend on the operation if they will need any support cells in the operational area.en.wikipedia.org
- In 2009, a performance assessment carried out by the government ranked the force's operational area as the third worst in the country.en.wikipedia.org
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