1-- Bill, I must tell you the truth. You failed the English exam again.
 
2-- Ah? Really? That stinks!
 
1-- Haha. April Fool's! Did you forget what day it is today?
 
2-- Wow, you were pulling my leg all along. I was really fooled.
 
1-- Alright, now let's be serious. Actually, you get high marks in the exam.
 
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注解：
 
1.truth实情 
2.exam考试   
3.pull my leg开玩笑

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译文：

1--比尔，我必须跟你说实情了。你英语考试又没及格。
2--啊？不是吧？太郁闷了！
1--哈哈，愚人节傻瓜！怎么你忘了今天是什么日子？
2--哇，你一直在开玩笑。我被作弄了！
1--好了，不跟你开玩笑了。其实你考的分数很高。