n.相对性;相对论
They teach the relativity of all ethical ideas. 他们宣扬一切道德观念的相对性。
To most people the law of relativity is difficult to explain. 对大多数人来说,相对性的规律很难解释。
Not everyone can understand Einstein's Theory of Relativity. 不是每个人都能读懂爱因斯坦的相对论的。