As we know和As we known有什么区别啊?后面都能跟什么时态?
问题描述：
As we know和As we known有什么区别啊?后面都能跟什么时态?
答
As we know是“正如我们知道”,这个结构通常以as 作为关系代词,引导非限制性定语从句,比如As we know,the earth moves around the sun.,这里“as”就在“as we know”这个从句中指代了“the earth moves around the ...