2--But does this actually mean we are floating above the ground?
 
1--So, your cousin is graduating from high school this year. Has she decided on a college?
 
2--She hasn't decided on anything yet. All her college plans are up in the air.
 
1--She doesn't even know what she wants to study!
 
2--She had better get on it!
 
1--If something is up in the air, it is undecided and uncertain.
 
2--If an object is floating through the air,it is hard to know where it is going, which is where this expression comes from.
 
1--In the past, people just said in the air.
 
2--But in the mid-1900s, we added "up", making it up in the air.
 
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注解：
 
1.floating漂浮
2.uncertain含糊的
3.object物体

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译文：

1--这个表达听起来像我们在天上飞。Up In The Air
2--但是这真的意味着我们飘浮在地面之上吗？
1--所以你的表妹今年要从高中毕业了。她决定去哪所大学了么？
2--她还没做好决定。她的所有大学计划还没确定下来。
1--她甚至都不知道想学什么专业呢！
2--她应该快点开始了！
1--如果某事飘浮在天空，就意味着未决定或者是不确定。
2--如果某物飘浮在天空之上，很难知道它要飘向何处，这就是这个表达的由来。
1--在过去，人们只用in the air这种表达。
2--但到了20世纪中期，人们加上了“up”这个词，从而变为了Up In The Air。