Today, professors routinely treat the progressive interpretation of history and progressive public policy as the proper subject of study while portraying conservative or classical liberal ideas—such as free markets and self-reliance–as falling outside the boundaries of routine, and sometimes legitimate, intellectual investigation.
A. 断句：找标志断句 ，该句有两断句标志，第一个是标点符号“连词”第一个连词处断句，第二个是标点符号，破折号。即：Today, professors routinely treat the progressive interpretation of history and progressive public policy as the proper subject of study //while portraying conservative or classical liberal ideas—//such as free markets and self-reliance–as falling outside the boundaries of routine, and sometimes legitimate, intellectual investigation.
B. 语法分析：
句子主干：professors treat the interpretation and policy as the subject while portraying ideas as the boundaries and legitimate, intellectual and investigation.,其中有很多词做定语，如：progressive, history….
修饰：such as free markets and self-reliance;插入语
A. 翻译：如今，教授通常把历史革新性解释和改革的公共政策看作研究课题，与此同时把保守或古典的自由思想—比如自由市场，自给自足—看作是超出常规，有时候会看作超出了学术研究范围。
