至于说英语

in respect of   with respect to  in/with regard to     as regardsrespecting  regardingas for/toas far as

如果是词语的话，那就是:as to[æz tu:]，至于; 关于; 按着; 根据;[例句]This gave me a clue as to the source of the problem.这件事给我提供了找出问题根源的线索。As to ability, I am not your match.讲能力，我不如你。

as for

至于... 有几种英语翻译，都行1）as for ... （这个最常用）2）when it comes to + 某事 3）as + 某事 + is concerned

as to...例如As to why she did that, I really don't know.至于说她为什么那么做，我真的不清楚（不知道）。