实证派犯罪学从社会视角来审视犯罪发生的原因，并提出一系列预防犯罪的措施，为如何预防青少年犯罪提供了可以描绘的蓝本。

The Positivist School investigates the cause of crime, and proposes a series of measures to prevent crime, which is the blueprint of how to prevent teenagers' crime.

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犯罪是阶级社会的固有现象，长久以来，有关犯罪产生的原因以及如何控制和预防犯罪的理论和学说层出不穷。

Crime is an immanent phenomena in the hierarchical society. Up till now, there emerged endless theories about the causes of crime and about the methods which people used to control and to prevent it.

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