英语语法分析

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。

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.

农业气候处于农业和气候两大系统的界面，是一个兼受自然因素和人为因素复杂影响的动态系统。