We should make every effort to prevent violence happening at school, for more and more students would drop out of school if their personal safety couldn't be guaranteed.

我们应该尽力防止校园暴力事件的发生，因为如果不能保证学生的人身安全，会有越来越多的学生辍学。

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Therefore the United States is working with regional and international organizations to prevent violence against women and girls, especially in conflict zones.

因此，美国正在与区域和国际组织合作，防止对妇女和女童的暴力行为，尤其是在发生冲突的地区。

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Police are out in force to prevent a recurrence of the violence.

警察大规模地行动防止暴力的再次发生。

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Professor Lawrence says the new federal law meant to prevent violence will not limit free speech rights.

VOA: special.2009.10.31

How can we prevent murderous schoolyard violence in children who have access to weapons,poor parental supervision, and a mean streak?"

如何防止校园暴力,这些暴力事件通常是由掌握武器，缺乏父母监管，或受到教唆的孩子引起的“

哈佛公开课 - 幸福课课程节选

She said the new resolution aims to give the United Nations and its members new tools to prevent violence and punish those responsible.

VOA: special.2009.10.24

We can prevent violence by enhancing early brain development and reducing exposure to toxins.

CNN: Opinion: Unlocking crime using biological keys

What are the best ways forward to prevent violence and HIV infection among women and girls?

WHITEHOUSE: Progress to Date: President��s Working Group on the Intersection of HIV/AIDS, Violence against Women and Girls, and Gender-Related Health Disparities | The White House

So, if we teach them to deal with frustration and anger, we can help prevent violence, of any scale, on the field.

CNN: Teaching kids to cope on the ball field