买家“包括民办高校、复读机构等，以及一些实施诈骗的不法分子。”
Buyers are private higher learning institutions and schools that enroll students who fail the exam, and it is feared that some buyers are swindlers.
去年，我们报道了一起实施诈骗的案件，一些英国公民向一个中介提交了资金，后来资金却没有被转交至相应的区域中心。
Last year we reported cases of alleged fraud carried out on UK citizens who had handed over funds to an agency that failed to pass them on to the appropriate regional center.
在数万站点上进行点击欺诈让侦测工作变得非常困难，但是这种诈骗方式也需要大量的人手来实施。
Spreading the click fraud out across thousands of sites makes it harder to detect, but it also requires a lot more people to perpetrate it.
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