11.  Actually, the situation exists that although men cannot give birth to children, yet there's increasing numbers of men looking after the children while their wives are working and bringing in the household wage.

12.  In many work units, there are about equal numbers of women and men.

13.  Large numbers of the things that women traditionally did, like cooking, cleaning, and taking care of the children, now tend to be shared more equally between husband and wife.

14.  As we all know, English is becoming more and more important under the trend of globalization, especially for us who often need to read a number of academic paper in English and will work in the filed of medicine finally.

15.  Women are publicly recognized as proficient in arts and literature, but there are really a large number of women who devote their life to natural science.

16.  As is known to all, it is indispensable for a postgraduate to study English well, since we are confronted with the international communication, and large numbers of references written in English .

17.  Then our passion is attenuated by tremenous number of vocabularies ang phrases.

18.  With the steady growth in the country's economy as well as the people's living standard, the number of private cars is on the fire.

19.  With the increasing number of private cars, these problems are more serious.

20.  First and foremost , I try to familiar with a large number of words in order to learn English better .