during和over 有什么区别?请最好给例句

during和over 有什么区别?请最好给例句 during which 和among which 的用法有什么区别?最好有例句 during 与over 有什么区别? over holiday & during holiday 有什么区别? on and,from to,between and,during to的区别和用法,最好有例句. maybe和may be有什么区别?请写详细些,最好给出一些例句. during和in有什么区别?请举例说明! in ten years' time 和 in ten years 有什么区别,请给例句 think over 与think twice区别 最好有例句 英语从句中定语从句和同位语从句有什么区别?请给我例句和分析. during,while和when有什么区别? while和during有什么区别