1.  As a whole, men and women play different roles in life based on their own characteristics.

2.  With the launching of the modern feminist movement, women play a more and more essential role in life.

3.  In a family, men play the role of son, father and grandfather while women play the role of daughter, mother and grandmother.

4.  During the long process of human history, men, as the symbol of strength and power, play the roles of leaders, entrepreneurs, politicians, officers, etc. , while women take the part of housewives, cotton spinners, teachers, writers and so on.

5.  In that time, to survive in the natural world, women played a more important role in society.

6.  In the past, men and women played totally different roles in life.

7.  During different periods, universities play different roles.

8.  In nowadays the skills of communication play a crucial role in our life.

9.  Besides personnel training, modern universities play a significant role in scientific research as well as economic construction.

10.  In a way, universities played a very crucial part as religious research institutions.