I have never smoked anything more noxious.

除此而外我没吸过更加有害的气体。

youdao

I have never smoked, but I might try it someday.

我从未吸烟，但是未来可能会尝试。

youdao

I have always eaten healthily and have never smoked or drunk alcohol because of migraines.

我的饮食总是很健康，由于偏头痛，我不抽烟也不喝酒。

youdao

So that is, as a minimum, more than 5, 000 new cases per year in people who have never smoked and around 4250 deaths.

BBC: How under-funded is lung cancer research?

Mick Peake, for example, says that around 10% or men and 15% of women who have the disease are people - like my late wife - who have never smoked.

BBC: How under-funded is lung cancer research?

Thus, these breast cancer risk factors are nothing like cigarette smoking as a risk factor for lung cancer, where a current smoker has roughly a 15-fold increased risk compared to that of someone who never smoked, and a heavy smoker might have a 40 or 50-fold increased risk.

FORBES: After 40 Years Of Research, What Do We Know About Preventing Breast Cancer?