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Nowadays, using smartphone is popular bacause it brings us much benefit as follow: We can be given much information by the Internet, we can also read book about other countries that we never been came on ebook , especially we can learn many things to improve our knowledge. Besides, using smartphone as your hobby can be harmful to both your health and your social life. Firstly, carrying smartphone all day in front of the screen phone can cause health problems such as eye - tiredness or obesity when lying on the sofa all day to use it. Secondly, if you use the smartphone too much, you will not have time for your family and friends. In short, smartphone has both disadvantage and advantage so you should only be used for a limited time.

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