change是可數名詞嗎

　　例句：

　　What we need now is a change of focus.

　　我們現在需要的是改變對事物的看法。

　　There's still time to change your mind.

　　你還有時間改變主意。

　　A change of job would do you the world of good.

　　換一下工作會對你大有好處。

　　I made only a few small changes to the report.

　　我對報告只做了幾處小改動。

　　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。