“long before 与 before long”有什么区别?

befor long 与 long before 的区别用法的不同 before long 和long befor的区别有没有时态限制呢？ not long before 和 before long有什么区别呢?It won't be long before we meet again.We will meet again befor long.这两句有区别吗？ before long 与 long before的区别 long before 与 before long的区别是什么 before long与long before 各用再什么时态! long before 与before long 的区别 ,有什么异同 “long before 与 before long”有什么区别? rain befor seven,fine before eleven befor long shortly after如何区别? before very long与put him right logn before与before long用法有什么区别 not long after与 before long 的区别 long before和before long before 和before long before和before He said that he was going to visit China before long and he had the idea long before.这里long before 与before long long before,before long,soon before,before soon的区别