[질문] be known to be known by be known as 의차이점이뭔가요?

be known to : ~에게 알려지다 be known by : ~로 알수있다(알려져있는데 그 판단기준이 ~에 있다) be known as : ~로써(로) 알려지다(자격 등을 나타냄)