A KIOSK is a client device which targets users of all ages, who have various educational backgrounds, and varied computer experience.

KIOSK是一个客户端设备，它的用户包括各个年龄段的人，而且他们具有不同的教育背景和计算机使用经验。

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Users from different backgrounds can understand how the system works.

具有不同背景的用户可以理解这个系统如何工作？

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Several dozen users of Microsoft's XP operating system and its Office software took to the Internet today to say that their desktop backgrounds had begun turning black.

一些微软XP操作系统和Office软件的用户们今天上网说他们的桌面背景变成黑色的了。

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"Tumblr is home to millions of readers and bloggers from a variety of locations, cultures, and backgrounds with different points of view concerning adult-oriented content, " the entry reads, asking users only to make sure to identify such pages as NSFW ("not safe for work") and, of course, not to post anything illegal.

CNN: What you should know about Tumblr