a long time-scale

a long time-scale over a long time-scale中的over指什么意思啊? time-scale long time和a long time区别? A long time 请求, a long time a long lonely time A long time ago a long time geological time scale 是什么? time-scale是什么意思啊? time scale of interest A long long time ago 歌词 英语翻译There is a huge study to universities management at environmental education,service education,management education for a long time.With the universities need students increasing,the universities' scale getting bigger,now,campus garbage ha 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