Ad blocker is a piece of software designed to prevent advertisements from appearing on a web page, i.e. software that blocks ads from web page.

Ad blocker指阻止网页上出现广告的一种软件，也就是拦截网页广告的软件，即“广告拦截器”。

Recent studies have shown increasing use of ad blockers by Internet users, prompting a flood of concern in the media about the viability of free digital content funded by advertising. 

近期的研究显示，越来越多的互联网用户在使用广告拦截器，由此引发媒体担忧，广告商提供资金支持的免费数字内容是否还能存活。