as we all know中的as是什么词性?

as we all know中的as是什么词性? as we all know . as is known to all中的as是什么词性 as we all know是什么意思 as we all know it as inclosure,as below,as before,中的as是什么词性. As we all know that the moon is (life) .词性转换 AS WE ALL KNOW,SUCCESS____________hard work as we all know同义替换 as well as 中的2个as分别是什么词性? As we all know,we are what we eat? as ...as ...和not so/as ...as结构中的几个as和so分别是什么词性