as far as [æz fɑ: æz]

以下由轻松背单词网站提供

（表示程度，范围）就...；尽...

As far as I know, he will be away for three months.据我所知，他将离开三个月。
As far as grammar is concerned, I have grasped it.就语法而言，我已经掌握了。