曾经人们很担忧，由于手机听筒接近耳朵，使大脑长期暴露在电磁辐射之下，有可能会引发癌症。
There have been fears that cancer could be triggered by the brain's exposure to electromagnetic radiation emitted from mobile handsets held to the ear.
潜在的致癌因素是由手机天线产生的射频电磁场，研究院称这种辐射可能与两种脑肿瘤有联系。
The potential villains in this scenario are radiofrequency electromagnetic fields, which are emitted by a cell phone's antenna, and which the agency says may be linked to two types of brain cancer.
此外，由于手机是电子产品，有对人的健康有害的辐射。
Moreover, as cell phone is electronics, it has radiation, which is bad for people's health.
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