Sharing the latest rumor can make a person feel important because he or she knows something that others don't.

分享最新的谣言会让一个人觉得自己很重要，因为他或她知道别人不知道的事情。

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He knows something about the boss, which is his ace in the hole.

他对老板有所了解，这是他的王牌。

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Child as he is, he knows something of electricity.

虽然还是个小孩，但他知道一些电的知识。

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He knows he is doing something important in their community.

VOA: special.2010.02.19

He knows something integral is broken but he desperately needs to be fixed.

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Dan Sullivan used to own a liquor store and he likes racehorses--so he knows something about risk and playing the odds.

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Unless he knows something that nobody else does.

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