Just last year, a major study in 13 countries found no clear evidence that exposure to the radiation from cellphones causes brain cancer.

就在去年，一项在13个国家开展的重大研究项目表明，没有明确的证据能够证实受手机辐射影响会导致脑癌。

youdao

Just last year, a major study in 13 countries found no clear evidence that exposure to the radiation from cellphones causes brain cancer.

就在去年，一项在13个国家开展的重大研究项目表明，没有明确的证据能够证实受手机辐射影响会导致脑癌。

youdao