年轻人的无聊是青少年犯罪的最大原因。
例青少年犯罪的主要原因是社会环境逐渐恶化。
The main reason why the juveniles commit crimes is that social environment is becoming worse.
例青少年犯罪的主要原因是社会环境逐渐恶化。
The main reason why the juveniles commit crimes is that social environment is becoming worse.
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