There is no systematic difference in membership between the group of mechanics who do first-time jobs and the group of those who do rework jobs.
在第一次工作的技工组和返工的技工组之间没有系统性差异。
These findings do not imply that urbanism makes little or no difference.
这些发现并不意味着城市生活方式几乎或根本没有影响。
I wanted to make a difference in the world somehow, but I had no idea how to do that.
我想以某种方式在世界上有所作为,但我不知道该怎么做。
But, in economic terms, there's no difference between losing the tickets and losing $400, so why do you behave differently?
但是,从经济学角度上看,丢了票和丢了400美元没有什么不同,但你为何会做出不同的反应呢?
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