We should obey (遵守) the rules and understand the idea of______(fair)

We should obey (遵守) the rules and understand the idea of______(fair)

fairnessidea of fairness公平观念e.g. 1.The Idea of Fairness in the Law of Enterprise Liability 2. It was revolting to the Englishman's idea of fair play.
这件事违反了英国人的公平竞争精神。

fairness，fair是形容词，公平的意思，应该变成名词

fairness of是介词，后接名词。 再看看别人怎么说的。