firewalls

例句:

• These pillars are firewalls, VPNs, antivirus software, and intrusion detection systems ( IDS ).
  防护方法包括四个方面:防火墙 、 VPN 、 反病毒软件, 以及入侵检测系统 ( IDS ).
  
• Luckily, most modern firewalls automatically update them selves once a week.
  幸运的是, 大多数现代防火墙每星期都会自动升级.
  
• Sometimes it means firewalls because it's dangerous to mingle.
  这有时会意味要竖起一道墙,因为混合交融是很危险的.
  
• We need credible firepowers and effective firewalls for the euro.
  来自VOA
• Software firewalls are not even worth installing and can be easily bypassed.
  来自BBC
• These can usually be dealt with using firewalls and off-the-shelf anti-virus software.
  来自THETIMES