as if和as though有什么区别?具体用法有区别吗?

as if 和as though even if和even though 有什么区别吗 as if和as though有什么区别?具体用法有区别吗? as if 和as though有木有区别? as if和as though有什么区别,什么时候用前者什么时候用后者? as和as if有什么区别? 请问 as if与as though ,even if与even though,so far as 与 as long as各有什么区别? as if 和 if 有什么区别? as if 和as though 的区别是什么? though,although,as,even if,even though有何区别? even though、even if的区别和as though、as if的区别 as though ,as if,seem,like做似乎讲的时候有什么区别 as though ,as if,seem,like做似乎讲的时候有什么区别 as if 和 as though 在用法上有区别么? as if 与 as though 有无区别 like和as if有什么区别? like和as if有什么区别? as 和as if 有什么区别啊?如题～ though/although/as有什么区别?