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In 2004 the number reached 315,000,000, with an average annual increase at 57,500,000.
到2004年,手机的数量达到3.15亿,平均每年增长了5750万用户。
youdao
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In 2004 the number reached 315,000,000, with an average annual increase at 57,500,000.
到2004年,手机的数量达到3.15亿,平均每年增长了5750万用户。
youdao