问下AS is well known和IT is well known有什么区别,选择总出.但好像意思一样啊

It is well-known it is well known that be well-known as和be well-known for区别 it known to all和as is known to all有什么区别? It is also well known as an international city. WELL-KNOWN和 WELL KNOWN的区别 as is known what is known it is known这三个有什么区别 最好把例子举出来! well-known 和well known有什么区别,最好给个例句 英语翻译It is well known that ( ) 括号内填什么? As is known to us.和It is known to us.后面接什么啊?为啥 the most widely known as we all know well-known是什么意思~又有什么区别~ It is well-known to sb 还是It is well-known to for sb?