a long time 区别 long time.求它们的区别.

long time和a long time区别? a long time 区别 long time.求它们的区别. for long与for a long time的区别 so long 和for a long time 有什么区别 a long time ago 、long long ago、once和once upon a time的区别 A long time 请求, a long time-scale a long time a long lonely time A long time ago a long time a long time和along time的区别 stay a long time与stay for a long time有什么区别请讲清楚. at a long time和for a long time的区别,请详尽回答 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 long和time的区别