250 million people engage with Facebook on external websites every month.
每月，大约有2.5亿的人从外部网站访问facebook。
An example of internal information might be log files from a data center, and external information might be several crawled websites or a dataset downloaded from a data catalog.
一个内部信息的例子可能是数据中心的日志文件，外部信息可能是一些抓取的网站或从数据目录下载的数据集。
Of course, you’ll also need to work on gaining valuable links from relevant websites as external linking is a major part of the success of an organic search campaign.
当然，你还需要继续努力去获得相关网站的宝贵链接，因为外部链接是原生搜索推广活动成功的主要因素。
Compromised machines can then be linked up to form "botnets" under external control, which are used to send spam e-mails or disable websites with a flood of bogus requests.
接下来，感染病毒的电脑被连起来形成“僵尸网络”，并被外部控制。“僵尸网络”能被用来发送垃圾邮件或者发动能使网站瘫痪的洪水攻击。
Compromised machines can then be linked up to form "botnets3" under external control, which are used to send spam e-mails or disable websites with a flood of bogus requests.
被感染的计算机可能被利用，形成可以在外部操作的“僵尸网络”。不法分子就可以利用该网络发送垃圾信息，或发出大量假信息导致网站瘫痪。
Compromised machines can then be linked up to form "botnets3" under external control, which are used to send spam e-mails or disable websites with a flood of bogus requests.
被感染的计算机可能被利用，形成可以在外部操作的“僵尸网络”。不法分子就可以利用该网络发送垃圾信息，或发出大量假信息导致网站瘫痪。
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