The cover showed a white keyboard with a mirror for a computer screen where readers can see their own reflection.
杂志的封面展示了一个白色的键盘，以及计算机显示屏，读者可以从中看到自己的反应。
These new semantics are important for non-visual users of the page (including anyone using assistive technologies like screen readers) but also for computer programs like search engine crawlers.
这些新语义对于页面的非视觉用户(包括使用屏幕阅读器这样的辅助技术的用户)和搜索引擎爬虫这样的计算机程序很重要。
His Demand Media USES a team of freelancers to churn out 7, 000 videos and articles a day, based on a sophisticated computer analysis of what online readers are searching for on any given day.
他的Demand Media每天动用一个团队的自由职业者粗制滥造出7000个视频或者文章，而这一切的根据就是复杂的网络运算来确定每天读者们都在搜集些什么内容。
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