As a kind of psychosomatic disorder, primary dysmenorrhea has undividable connection with the mental problems, which actually is a kind of concrete and typical pain. 原发性痛经作为一种心身疾病与心理问题有着不可分割的联系,痛经本身就是一种具体化、典型化的疼痛,给青春期女性带来了焦虑抑郁等不良情绪。
The contemporary innovation of learning, as an undividable aspect of social progression, has been the motive force of the development of society. 当代学习变革作为社会变迁的一个重要方面,已经成为当代社会发展的基本动力之一。
Flood insurance possesses the characteristics of public goods, such as undividable utility and big scale of operation; whereas in other aspects it is of the features of private goods including competition of consumption and exclusiveness in benefits. 洪灾保险在某些方面具有公共物品的特征,如效用上不可分割性、经营上的规模性。但洪灾保险在某些方面又具有私人物品的特性,如消费上的竞争性和收益上的排他性。