8.as far as I can tell or so far as I can tell就我所知；在我看来
As far as I could tell, they seemed to live a good life.就我了解, 他们生活得好像还不错。
As far as I can tell, Jason is basically a nice guy.据我所知, 贾森总的来说是个不错的人。
His mom hadn't much liked him, so far as he could tell.就他那时所知, 他妈妈一直不怎么喜欢他。