There are bound to be changes when the new system is introduced.

　　引進新系統后一定會發生變化。

　　There have been many changes in recent years.

　　近幾年發生了許多變化。

　　Many people feel that the law should be changed.

　　許多人都覺得這項法律應該修改。

　　Down through the years this town has seen many changes.

　　這些年來這座城市發生了許多變化。

　　There is a growing realization that changes must be made.

　　越來越多的人認識到改革勢在必行。