众所周知的事 an open book ; a matter of notorious fact ; matter of public knowledge

为某人或某事所知 Be known to sb./sth

你所应该知道的事 What you should know

人所共知的事 general knowledge

众所周知的事实 well-known fact

一个众所周知的事实 A Well Known Fact

众所周知的事情 news from nowhere

分享我们所知道的事情 share what you know

没有知道所有事实 without knowing all the facts