However, as good as these services are, there are simple steps we can take to keep them at bay.

然而，尽管这些服务很好，我们还是可以采取一些简单的步骤，和它们保持距离。

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As hackers turned up, layers of security, from antivirus programs to firewalls, were added to try to keep them at bay.

随着黑客的出现，从防病毒程序到防火墙的层层安全措施被添加进来，试图阻止他们。

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Couldn't I just line the perimeter of my yard with something to keep them at bay?

我不可以只用什么东西在我的院子周围画线来隔绝它们吗？

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Our coach journey crawled through the streets as police tried to keep them at bay.

BBC: Cricket World Cup: Andrew White column

In other words, when the wolves come back to our door, there will be fewer, and noticeably weaker, dogs to keep them at bay.

CNN: Military families living in dread of cuts

One way to keep them at bay is to preach conservation.

FORBES: A Dirty Game