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As can be seen from the charts more and more people own mobile phones in now At the end of 2002 there were 20 million mobile phone users By the year 2005 the number has reached up to 30 million People have found mobile phones very convenient They can get in touch with each other whenever and wherever they like There are many different functions to meet different needs such as sending short messages and surfing the Intemet
However it may also bring us some trouble For example if someone calls you by mistake you will have to pay for this kind of unnecessary calls And the radiation from the phone may do harm to our health In spite of this the number of people having mobile phones is still increasing steadily
从表中我们可以看到，在中国拥有手机的人越采越多。凹02年年底，有二亿手机用户，到2005年已达三亿。人们发现手机方便，可以随时随地联系想要联系的人。还有许多功能可满足不同要求，如发短信，上网等。
可是手机也给我们带采一些麻烦，如：接到打错的电话并为之付费，电磁辐射有害健康。尽管如此，使用于机的人数仍在稳步升高。