make a difference

: to cause a change : to be important in some way有影响；有关系；起作用

Cost can make a difference in deciding on a college.费用可能影响到选择上哪所大学。
“When would you like to leave?” “It makes no difference (to me).” [=it doesn't matter to me; I don't care]“你想什么时候离开？”“（我）无所谓。”
The weather didn't make any difference in our plans. [=didn't change our plans]天气没有影响我们的计划。
It would make a lot of difference if you came.如果你来，情况就会有很大不同。
Your help made a big difference.你的帮助起了很大作用。
It makes very little difference. [=it matters very little]这无关紧要。
The size of the engine can make all the difference. [=can be very important; can matter most]引擎的大小关系重大。
It may not matter to you, but it makes all the difference in the world to me. = It makes a world of difference to me. [=it matters very much to me]这对你而言可能不算什么，但对我来说却至关重要。

: to do something that is important : to do something that helps people or makes the world a better place做重要的事情

She says that she got into politics because she wanted to make a difference.她说自己之所以从政是因为想做点事情。

⇒ Main Entry: difference

idiom

: to cause a change : to be important in some way

Cost can make a difference in deciding on a college.

Your help made a big difference.

It may not matter to you, but it makes a world of difference to me.

: to do something that is important : to do something that helps people or makes the world a better place

She says that she got into politics because she wanted to make a difference.