different的名词

　　It took a practised eye to spot the difference.

　　只有内行人才能看出其中的差异。

　　Can you spot the difference between these two pictures?

　　你能不能看出这两幅画有什么不同？

　　Nothing I do makes any difference anyway, so why bother?

　　不管我做什么都没有区别，那为什么还要费心去做呢？