请根据以下图表和提示，用英语写一篇关于我国居民手机拥有量变化的报告，并阐述手机给
题型：写作题
问题：
请根据以下图表和提示，用英语写一篇关于我国居民手机拥有量变化的报告，并阐述手机给人们生活所带来的利与弊。
As can be seen from the chart, great changes have been taking place in the ownership of mobile phones in China._________________________________________
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