For the practice tool, Bourdieu cited and deepened the concept of Capital of Marx.

在实践工具上，布迪厄引用并深化了马克思的资本概念。

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Kelly has called the practice a lifesaving tool that deters criminals from taking illegal weapons in public.

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The New York Police Department says the practice has been a valuable tool for catching career criminals and deterring thefts in public places.

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"However, much of the current delay is due to poor practice, not the lack of tool for diagnosis, " he said.

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