a long time中的time是次数还是时间

a long time中的time是次数还是时间 long time和a long time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 是For a too long time还是for too long a time long time ago 前面一定要加 a 也就是一定是 a long time ago 花很长时间是spend long time还是spend a long time? what a long time. 是什么意思?就是What a long time. a long time going是什么意思? A Long Time Ago 歌词 ten minutes a long time a long time 区别 long time.求它们的区别. A long long time ago 歌词 it been a long time.中的“been”,为什么用这个错了。it't been a long time.