n.相對性;相對論
They teach the relativity of all ethical ideas. 他們宣揚一切道德觀念的相對性。
To most people the law of relativity is difficult to explain. 對大多數(shù)人來說,相對性的規(guī)律很難解釋。
Not everyone can understand Einstein's Theory of Relativity. 不是每個人都能讀懂愛因斯坦的相對論的。