2--But what does it mean if you: Go the Extra Mile
 
1--Let's listen to Anna and Jonathan:
 
2--Oh, my! Anna, that is an interesting look!
 
1--I am just trying out my Halloween costume a little early.
 
2--I see that. You sure do go the extra mile every Halloween. That must have taken time to make!
 
1--I just really want to win the costume contest this year!
 
2--To "go the extra mile" means to make a special effort at something.
 
1--It can also mean to work very hard to reach a goal.
 
2--Think of an athlete running an extra mile to train harder.
 
===================================
注解：
 
1.measure测量  
2.costume服饰
3.athlete运动员

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

1--美国人用“miles（英里）”来衡量距离。
2--但这是什么意思呢：加倍努力
1--我们来听一听安娜和乔纳森怎么说：
2--哦，天哪！安娜，你的装扮很有意思！
1--我只是提前试了试我的万圣节服装。
2--明白了。你每个万圣节都格外努力啊。那一定花了不少时间吧！
1--我真的很想赢得今年的万圣节服装比赛！
2--“go the extra mile”的意思是你在某件事上特别努力。
1--它也可以表示为了实现目标而努力工作。
2--想像一下，一名运动员为了刻苦训练多跑一英里。