这句我和lz的理解有较大差异，或者说相反。exceptionally hard是说异乎寻常地难吧，就是说那些措施使确保白领犯罪最终被定罪变得异常困难。
One of several measures pushed through that make it exceptionally hard to secure a conclusive conviction for any white-collar crime in Italy.
这本书提供热力学的简明的概述，并且被用使难的主要内容可理解的一种方式写。
This book provides a concise overview of thermodynamics, and is written in a manner which makes the difficult subject matter understandable.
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