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谈论一下上网的利与弊 Now , internet is very important and useful for us . But it still has lots of disadvantages . For example , if we surfing the internet lots of time , our eyes will become tired and bad . Though internet has many disadvantages , it still very useful for us , in order to surfing the internet , the advantages is much more than disadvantages . So we should surfing the internet by the time . | 
