91.  In the past, men and women generally had their own roles to fulfill.

92.  At the beginning of the semester, we had two academic reports that was reported by English.

93.  No one was pushing me to learn English, on contrary, more and more frequently I had to use English.

94.  It was not an exam I had to take any more.

95.  As a postgraduate, I've learned English for nearly 10 years, during the period, I had gains and losses.

96.  Humans had to rely on strength fighting against with nature.

97.  In this way, men had better advantages than women because men were usually much stronger than women.

98.  An American anthropologist, Middlesbrough, who studied three tribes in New Guinea in 1935, found that they had very different men and women's role pattern.

99.  In the first tribe, men and women all had "feminine" features: mild, obedient and mutually non-aggressive, while characteristics like competitive, enterprising, thirsty for new knowledge, the so-called "man" spirit is rare.

100.  Plato had an inference that a human being was a unity which composed by man and women at the very beginning of life.