Results from individual participating countries have suggested an association between more than 10 years of mobile phone usage and some tumours.

个别参与国的调查已经表明了连续10年以上的手机使用和肿瘤的某种联系。

youdao

Internet usage, mobile phone usage, advertising dollar spend - all have grown enormously over the last 15 years to provide a stronger foundation underneath the latest boom.

互联网应用、手机应用、广告支出——所有这些在过去15年中都有了巨大的增长，为最新一轮繁荣提供了更强有力的支持。

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Wild said part of the problem with this study, which was launched in 2000, was that rates of mobile phone usage in the period it covered were relatively low compared with today.

Wild认为该研究存在两点缺陷，一是因其始于2000年，与现今相比，当时手机使用率相对较低；

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But,on the other hand, Ms.Teltscher says mobile phone usage has reached sixty-eight percent in developing countries.

VOA: special.2010.10.25

Founded in 2009, the service aggregates anonymized data, such as mobile phone usage and other data.

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Mobile phone usage for shopping provides another advantage to the consumer.

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As a result, for years the U.S. lagged behind Europe in mobile phone usage, and even today our poor call quality and frequently dropped calls can be blamed in part on this regulatory hodge-podge.

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