He urged the committee to discount any secondhand knowledge or hearsay.

他敦促该委员会不要相信任何二手的消息或传闻。

《柯林斯英汉双解大词典》

Certainly, no all-round knowledge can be acquired merely by glancing this way and that and relying on hearsay.

东张西望，道听途说，绝然得不到什么完全的知识。

《新英汉大辞典》

Everyone has water for the bottle what delicious of divertive everyplace romantic feeling everyplace general knowledge hearsay hair grumble can infuse here.

大家有水就罐，什么好吃的，好玩的，各地风情，各地见闻，小道消息，发发牢骚，都可以灌到这里来。

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Of course the NCAA, Auburn, another member institution, a real and sober journalist, or some hearsay-free person of first-hand knowledge may still reveal facts of serious NCAA violations by Cam alone.

FORBES: The Heisman Voters' Dilemma: Facts Vs. Faith