详细解释:只要...
词意辨析：
as(so) far as, as(so) long as两者都是as...as...引导的词组。
as(so) far as: 意思是“就......而言（所知）”，as (so) far as sth．is concerned是其中一种具体用法，意为“就某事而言”。as far as i know, more than 10 million laid-off workers have found their new jobs.
就我所知，一千多万下岗工人已经找到了新的工作。
as(so) long as: 意为“只要”，引导条件状语从句。there is nothing that we can’t do so/as long as we keep on trying to do it.
只要我们不断地努力去做，就没有什么事干不成。例句：
He came in with a face as long as a fiddle and said it was raining again.他拉长着脸进来说，又下雨了。