They studied the ways in which the relativity theory bears on the history of science.他们研究相对论与科学史相关联的方式怎么理解in which?把in省去行吗?why?
问题描述：
They studied the ways in which the relativity theory bears on the history of science.
他们研究相对论与科学史相关联的方式
怎么理解in which?把in省去行吗?why?
答
in which = in the way
答
which指代的先行词是way,而way的用法则是in a way等,需用介词in,故此处使用了in which