维持治安 meaning in Chinese

keeping the peace
maintenance of peace
police

I still had trepidations about their ability to maintain security .
我对他们维持治安的能力还是心中无数。
I shall tell them that our courts are no longer fit instruments to safeguard the public peace !
我要告诉他们说，我们的法庭已不配作维持治安的合适工具了！
Maintain regular foot patrols in the urban and suburban areas
例行巡逻，维持治安。
The federal marshals may need help keeping things under control until then
联邦保安官需要帮助维持治安

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