It lets website owners easily get pre-screened users to rapidly do usability testing of their websites.

它使网站拥有者方便的获得预先筛选的用户以快速地完成他们网站的可用性测试。

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Some sites, such as Healia, can limit results to those written at a "basic reading" level. Others, such as Mamma Health, limit results to pre-screened medical sources.

有些网站，如Healia，可以对表明“基本阅读”的水平的使用者限制结果，其它如Mamma Health的网站，对使用者的医学渠道将预先过滤限制结果。

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The MBE shall make available to the Employer, pre-screened qualified applicants as requested. The Employer shall have the final decision on the selection of workers for employment.

MBE应依据雇主要求对求职人进行预先筛选以确定其资格。雇主对求职劳工之遴选拥有最终决定权。

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Was the White House aware that they were being invited to attend the event and their questions pre-screened?

WHITEHOUSE: Press Briefing

Which means that politicians should never allow themselves to be questioned directly over Twitter, for they will indede be bombarded by these sorts of tweets, tweets that cannot be pre-screened as email can.

FORBES: How Not to Use Twitter in Politics

Now, first of all, we haven't pre-screened anybody.

WHITEHOUSE: Town Hall in Los Angeles