Because I think study just confines to the textbook impracticably .

因为觉得学习只局限于课本里。

Lawyers had criticized the provision as impracticably vague because it is possible to define an individual market in many different ways .

一些律师曾批评这条规定过于模糊，不易操作，因为对某个市场的定义有很多不同的方法。