高中英语问题16.14

问题描述:

高中英语问题16.14
高中英语问题
请告诉我一下原因,谢谢
as is known to all
it is known to all
区别是什么

表"众所周知"时,It is known to all后应接that从句,As is known to all后应用逗号.