as和for的区别Everyone wants to reduce pollution,as the pollution problem is very serious,为什么用as而不用for?

as和for的区别Everyone wants to reduce pollution,as the pollution problem is very serious,为什么用as而不用for? for和as for的区别 as for和for的区别, as to和as for以及as with的区别? such as 和 for example 的区别 for example 和such as的区别 for example 和such as的区别 take for 和 take as 的区别 accept for和accept as的区别 as,for的区别 As to 和 As for 的用法有什么区别? everyone和anyone的区别 everybody和everyone的区别 everyone和everybody的区别? for example,for instance,such as和like的区别 because ,since ,as 和for有什么区别?尤其是since和as的区别 as for 与as to的区别 as,for,with的区别