as young as 和as old as

as..as(as...as) as much as和as more as as difficult as和as easy as ? as carefully as 和as careful as Mary is as old as as far as,as long as,as well as和as much as四个词意思? as...as. as...as ;so...as as...as和so...as的区别 as well和as well as as well as 和as well so as 和 as as什么区别,