2--Are Jonathan and Anna about to sing different songs for us?
 
1--So, Anna, how are plans for the office party going?
 
2--Good! I bought lots of food, drinks, and a chocolate fountain and I hired a band.
 
1--Do we have money for all that?
 
2--Well, the boss said to plan a great party so…
 
1--They said that. But after they find out how much the party is going to cost, they will be singing a different tune.
 
2--This expression has nothing to do with singing.
 
1--In many dictionaries, the official definition of "to sing a different tune" is "to change the way one talks about something."
 
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注解：
 
1.Tune曲调
2.fountain喷泉
3.definition定义
 
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译文：

1--“tune”是形容一首短曲子的另外一个词。改变主意
2--乔纳森和安娜是准备为我们唱不同的歌曲吗？
1--安娜，办公室的聚会准备的怎么样了？
2--很好！我买了很多食物、饮料，还买了巧克力喷泉，我还请了一支乐队。
1--我们有钱买这些东西吗？
2--老板说要举办大型聚会，所以...
1--他们是这么说的。不过当他们发现聚会开销多少后，肯定会改变主意的。
2--这个表达与唱歌无关。
1--许多字典里，官方定义“改变主意”的是指“改变谈论某事的方式”。