as 和as if 有什么区别啊?如题～

as 和as if 有什么区别啊?如题～ as和as if有什么区别? as if 和 if 有什么区别? like和as if有什么区别? like和as if有什么区别? as long as和if的区别如题 as if 和even if有什么区别 as if ,even if有什么区别和用法 as,as if,as though,like的区别如题 as long as和if有什么区别?if only、only if 又是啥意思? as better as和as well as有什么区别? as fast as 和as soon as有什么区别? as if 和as though even if和even though 有什么区别吗 sound as if 和sound like有什么区别?如体 as if和as though有什么区别?具体用法有区别吗? sound as if 和sound like有什么区别 look like 和 look as if 有什么区别? as if,as,that引导表语从句有什么区别