XDF-39

天天灿烂

Historians sometimes forget that history is conunu- ally being made and experienced before it is studied, interpreted, and read. These latter activities have their
        own history, of course, which may impinge in unex-
pected ways on public events. It is difficult to predict when "new pasts" will overturn established historical interpretations and change the course of history.
    
历史学家有时候忘记了历史是在它被研究、解释和认识之前就已经存在的了。这后者（就是上句话的studiy,interpret and read）的种种有其自身的一个发展历程，并且理所当然地，它们的发展历程会对公共事务产生不可预见的影响。（我们）无法预见什么时候新诠释的历史会推翻已经建立的对历史的解释，并且改变历史的进程。