They may teach very well and more than earn their salaries, but most of them make little or no independent reflections on human problems which involve moral judgment.
【核心词汇】
reflection n.反射，思考，反省
involve v.涉及，卷入
more than 超过，在文中译为“不只是，不仅仅”
【结构分析】
本句是并列复合句，第一个分句They may teach very well and more than earn their salaries相对比较简单，第二个分句较难之处是human problems跟了一个定语从句which involve moral judgment。
【参考译文】
他们可以教得很好，而且不仅仅是为了挣薪水，但他们大多数人却很少或没有涉及道德判断的.人的问题进行独立思考。
