Equality Between Men and Women
     At present, more and more people think that men and women should enjoy equal rights. Many countries even have passed laws to guarantee such equality between different sexes. Accordingly, there are now no longer certain jobs or certain places that are closed to women. The number of businesswomen, female doctors, scientists and leaders is considerably increasing.
     There are three rnain reasons for the improvement of women's social position. First, women themselves have been persistently struggling for the equality. Second, men also realize that women are not born inferior to them. Women can do a great many things as well as or even better than men. Third, the social development has produced a great demand for women's participation in every field.
     In spite of these changes the liberation of women has not been completely realized. Prejudice against women is deeply rooted in some people's mind, especially in the distant rural areas. So, our mankind should take further painstaking efforts to really realize the equality.
     這篇文章的第二段，就是非常典型的用first，second，third為次序詞，列舉三方面細節(jié)進行論證的例子。