n.相對(duì)性；相對(duì)論

They teach the relativity of all ethical ideas. 他們宣揚(yáng)一切道德觀念的相對(duì)性。

To most people the law of relativity is difficult to explain. 對(duì)大多數(shù)人來(lái)說(shuō)，相對(duì)性的規(guī)律很難解釋。

Not everyone can understand Einstein's Theory of Relativity. 不是每個(gè)人都能讀懂愛(ài)因斯坦的相對(duì)論的。