There are bound to be changes when the new system is introduced.
引进新系统后一定会发生变化。
There have been many changes in recent years.
近几年发生了许多变化。
Many people feel that the law should be changed.
许多人都觉得这项法律应该修改。
Down through the years this town has seen many changes.
这些年来这座城市发生了许多变化。
There is a growing realization that changes must be made.
越来越多的人认识到改革势在必行。