第1个回答 2011-08-04
现在一般用:To my knowledge
第2个回答 2011-08-04
据我所知
基本翻译
as far as know
for all I know
to the best of mt knowledge
As far as I can see
第3个回答 2011-08-04
As much as I know
To my knowledge本回答被提问者采纳
第4个回答 2011-08-04
As I have known
第5个回答 2011-08-04
As i know as far as i konw
as far as I concern