这项研究跟踪调查了这些十几岁男孩们的生活。

The study followed the lives of these teenager boys.

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一项关于青少年上网习惯的调查显示，有些女孩和男孩一样喜欢欺负其他孩子。

Girls as likely as boys to be among the few who bully other children online survey discovers.

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这项皮尤调查发现，女孩和男孩给他人发送性短信的可能性均等，年龄较大的青少年发性短信的可能性更大。

The Pew survey found that girls and boys were equally as likely to have sent a suggestive picture to another person and older teenagers were more likely to have engaged in "."

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