71.  Of course, not all the words in test books are used often.

72.  In the other hand, if we try to improve our vocabulary by reading books, we can learn a lot of words that are used often.

73.  English is used more and more wildly in the word.

74.  You should find a way to gain the acknowledges different from what you used to do in secondary school.

75.  Group norms and social stereotypes define the limits of social behavior that we often used to differentiate groups to which we belong from those to which we do not.

76.  Given the fact that human populations do differ and race is not the basis for those variations, race or a specific group should not be used as a proxy for poverty, class, education, discriminatory experiences, and certain behaviors among other factors.

77.  We will add two new kinds of brushes which use Nanotechnology and can even be used in space.

78.  Are you proud of these cosmetic brushes broadly used in the painting, calligraphy, advertising, medicine, food industry and other kinds of fields?

79.  Although we've own many different patents, we still need innovation for brushes used in the field of education.

80.  What's more, lots of test words they memorized are not commonly used in English-speaking country and even native people had't see it and don't know the meaning.