Traditional paper management system can't provide users with the comprehensive and efficient keyword query because of the users knowledge limitation.

由于用户知识领域的局限性，传统的论文管理系统无法为用户提供全面而高效的关键字查询。

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The social network will let users "mute" messages from other users on their timelines without the muted person's knowledge, thereby avoiding the awkward.

该社交网络允许用户在其他用户不知情的情况下设置其消息免打扰，从而避免尴尬。

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These factors might include the end users? business knowledge, how well they can express themselves, or how much time they have for the interview.

这些因素可能包括终端用户的业务知识，他们可以如何较好地表达自己，或他们接受采访多长时间。

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Files stored in the cloud can still be easily lost or subpoenaed without the users' knowledge, Jeschke noted, an issue that's often overlooked.

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Consider that many lead social users are knowledge experts or well connected, but not necessarily involved in the more mundane tasks of managing customer leads, even if they do talk to customers often.

FORBES: What Do I Do With this Customer Lead From My Social Network?

Even authorised users require specialist knowledge to operate them.

ECONOMIST: Cyber-terrorism is possible, but not very likely