as/so far as

1．to the extent of就…而论
*As far as I know， the building will be completed at the end of the year．据我所知，这幢大楼将在年底完工。
*As far as my knowledge is concerned， there is no such word in Chinese．据我所知，汉字中没有这样一个字。
*So far as our desire is concerned，we don't want you to go there．就我们的愿望而言，我们不愿你到那儿去。
2．to the distance that 远至
*They walked as far as the foot of the hill．他们一直走到山脚下。