Can you imagine a world without the Internet？It’s surprising to think about it. Now，China has more than 162 million Internet users，according to the China Internet Network Information Centre.This is the second largest number of users in the world after the United States.Today,66% of Chinese netizens(网民) are teenagers.“They spend about thirteen hours every week online，” said Qian Hulin，an Internet expert.Doctor Song in Beijing Xuanwu Hospital said，“About 14% of Chinese netizens who are teens often last over ten hours to play online games.”

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