1FAMOUS[only before noun] used about something that people know about or have discovered 已知的,已发现的
a study of all the known facts
对所有已知事实的研究
her last known address
她最后一个为人所知的地址
Apart from vaccines, there is no known way to protect against meningitis.
除了使用疫苗外,还未发现其他预防脑膜炎的方法。
2[only before noun] a known criminal, drug dealer etc is someone who people know to be regularly involved in criminal activities or to do other things that are disapproved of 〔罪犯、贩毒者等〕已知的,出了名的
He was found with several other known sex offenders.
他被发现和另外几个众所周知的性犯罪者在一起。
a known liar
出了名的说谎者
3be known for somethingto be famous or known about by a lot of people because of something 以某事知名,以某物闻名