make a difference 和play a role in 的区别

make a difference 和play a role in 的区别：

play a part in 的意思是参与,扮演角色,起作用
make a difference to 的意思是对...产生影响.
你参与了某个活动用play a part in
如果你做了某些事对其他人产生影响,用make a difference to

二者在意思上有较大的差别。

make a difference
意思是有影响，起（重要）作用，区别对待。
例句：
1、We should make a difference between new word and coinages.
对新词和生造词要区别对待。
2、I believed that I can make a difference in this world.
我也坚信我世界一定会因我而不同。
3、Does where the start and finish are in relation to each other make a difference ?
起点和终点的位置和它们的相互关系是否会使得结果不同？
4、I can make a difference in this word.
世界会因我而不同。

play a role
意思是起作用；扮演角色。
例句：

1、She would only play a role if she could identify with the character
她只愿扮演她能认同的角色。
2、It is stupid to play a role with the night and the day.
对黑夜和白天扮演角色是愚蠢的。
3、The international community can play a role.
国际社会可以在其中发挥作用。
4、Outside forces also play a role.
外部力量也发挥了作用。

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