The security forces had to intervene to prevent the situation worsening.
那些安全部队不得不干预以阻止形势变得更糟。
I have done nothing to prevent this outcome: no security, no precautions.
我没有做任何措施来阻止这件事的发生：没有安全或是预防措施。
Enhanced security features to secure laptops and prevent identity theft.
增强安全性能，保护你的笔记本，防止身份盗用。
Intelligence to prevent attacks is part of what experts call a "layered" security approach.
防止袭击的情报是专家所说的“分层”保安措施的一部分。
Security officers at the fire scene control the fire scene to prevent theft.
防止乘火打劫，在火警现场做好警戒工作。
Take reasonable steps to keep the security device safe to prevent fraud.
采取合理措施来保持安全设备的安全，防止欺诈行为。
The security zone was set up to prevent guerrilla infiltrations.
设立了安全区以防止游击队员的渗入。
Hide Internet location, to prevent others from tracking, the effective protection of Internet security.
隐藏上网位置，防止他人追踪，有效保护上网安全。
Hide Internet location, to prevent others from tracking, the effective protection of Internet security.
隐藏上网位置，防止他人追踪，有效保护上网安全。
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