Police systems in us are rather complicated including various levels of police organs such as federal police, state police, city police, county police, special police and private security guard.
美国警察机构复杂多样，同时存在着联邦警察、州警察、城市警察和县(郡)警察及特种警察、私人保安机构等不同层级。
Police systems in us are rather complicated including various levels of police organs such as federal police, state police, city police, county police, special police and private security guard.
美国警察机构复杂多样，同时存在着联邦警察、州警察、城市警察和县(郡)警察及特种警察、私人保安机构等不同层级。
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