long和time的区别

long和time的区别 long time和a long time区别? a long time ago 、long long ago、once和once upon a time的区别 a long time和along time的区别 a long time 区别 long time.求它们的区别. 英语翻译what long time 和 what a long time的区别 it's a long time 和 it's long time 的区别 it is a long time和it is long time 的区别 at a long time和for a long time的区别,请详尽回答 after some time和before long的区别 all day time和all day long的区别 long hours和long time有什么区别? so long 和for a long time 有什么区别 for long与for a long time的区别 before long 和long before的区别 long distance和long-distance的区别? long before 和long ago的区别 long before和long long ago的区别是什么?