It is not simply a matter of tobacco companies proving that their cigarettes reduce the risk of cancer, says Hatsukami.

这不仅仅是像烟草公司证明他们的香烟降低了癌症的危险。

youdao

It is not simply a matter of tobacco companies proving that their cigarettes reduce the risk of cancer, says Hatsukami.

这不仅仅是像烟草公司证明他们的香烟降低了癌症的危险。

youdao