2-- It's hard to say! But it seems that a lot of wars nowadays are civil wars. People from different ethnic groups in the same country sometimes fight for power in that country.
 
1-- Yeah, several of those civil wars have been going on for years and years. It seems they will never end.
 
2-- How do you think they could be ended?
 
1-- I don't think that there is any easy way.
 
2-- I think one better way to stop it is to cut off their financial support.
 
1-- Yeah, you are right!
 
===================================
注解：
 
1.colleague同事  
2.causes原因  
3.financial support财务支援

===================================
译文：

1--嘿，约翰！你认为如今引起战争的主要原因有哪些？
2--很难说！但看起来现在许多战争都是国内战争。来自同一个国家的不同种族的人们有些时候会为了国家的政权而开战。
1--是啊，一些这样的内战已经一直持续了好多年，感觉永远都打不完。
2--你觉得怎样才能停止战争？
1--我不认为有什么简单的方法能让他们停战。
2--我觉得让他们停下来的好方法就是切断战争国家的经济支援。
1--嗯，你说得对!