Noun:

1. the doctrine that reality consists of two basic opposing elements, often taken to be mind and matter (or mind and body), or good and evil

symmetryn.对称(性)；匀称；整齐

contrastn.对比；差别；对照物v.对比；成对照n.[计算机] 反差

dichotomyn.两分；分裂；二分法

oppositionn.反对；敌对；在野党

polarityn.极性；磁性引力；两极

differentiationn.区别；分化；变异；[数]微分

dualityn.两重性；二元性

1. He ignores the traditional Christian dualism between body and soul.
   他忽略了基督教的身体和灵魂之间的二元论。