性质英文nature或property。
性质 property ; [科技] nature ; [科技] quality ; character
物理性质 [化学] physical property ; Physical Properties ; physical appearance ; physical nature
社会性质 social character ; social nature ; Nature of Society
双语例句原声例句：
1、关键证据的性质和有效性将不予以讨论。
The nature and availability of material evidence was not to be discussed.
2、他不能抱怨他对这个政体的真实性质不知情。
He could not complain that he was uninformed about the true nature of the regime.
3、戴高乐将军意识到核武器将从根本上改变国际关系的性质。
Gen. de Gaulle sensed that nuclear weapons would fundamentally change the nature of international relations.
Rachelkeikei
