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    Now machines are widely used all over the world. Why are machines so important and necessary(必需的) to us?   1 they can help us 2  things better and faster.
    A washing machine helps us to wash 3  quickly. A printing(印刷) machine helps us to  4 a lot of books, magazines, newspapers and many  5 things quickly. Bicycles, cars, trains and planes are all machines. They help us travel   6   than on foot.
    The computer is a wonderful machine. It 7not long ago. It not only stores information but also stores numbers millions of times   8  than a person does.
    Let's study hard and try to use all 9of machines to build China into a  10 country.
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