The vocative pronoun system, a subsystem belonging to the language macrosystem of the human beings, plays an extremely important role in communication activities and social relations.
人称代词系统是人类言语交际宏观系统中一个重要的子系统，在交际中具有十分重要的作用。
2
The agroclimate located in the median surface of two macrosystem of the agriculture and the climate is a dynamic system, which has been affected by both the human factors and natural factors.