The study, however, did say people who had never used a cell phone had a lower risk of brain cancer than people who used them than people who had.

不过，这一研究还表示，从未使用过手机的人患脑部肿瘤的风险要比使用过手机的人低。

youdao

The study, however, did say people who had never used a cell phone had a lower risk of brain cancer than people who used them than people who had.

不过，这一研究还表示，从未使用过手机的人患脑部肿瘤的风险要比使用过手机的人低。

youdao