Pay-per-click advertising is not without its problems-especially "click fraud", the practice of generating bogus clicks for devious reasons, such as making a rival advertiser pay for nothing.

点击付费广告也不是没有缺陷-特别是“点击欺诈”，以某种不正当的原因产生的欺诈性的点击，比如为了让竞争对手的广告失效。