n.纯净；纯洁；纯正；纯粹
We must ensure the purity of drinking water. 我们必须确保饮用水的纯净。
Chinese people regard lotus as an emblem of purity. 中国人把莲花看作是纯洁的象征。
White symbolizes purity and cleanness. 白色代表纯洁和干净。
It's a soprano of great compass and of great purity. 这是一种音域宽广，高度纯正的女高音。
So in order to study Socrates' legal thoughts, the author uses the methods of limiting materials to ensure the purity, and giving up comprehensiveness to improving authenticity. 笔者用有限材料来保障纯粹，放弃全面性而提高真实性的方法来研究苏格拉底的法律思想。
n.不纯；杂质
