Doctor Soerheim says there are several possible explanations why women may be more at risk from the effects of cigarette smoke than men.

VOA: special.2009.06.23

In order, prior to lighting your cigarette you can ask your friends, "Do you mind if I smoke?"

在点燃你的烟之前，出于礼貌，你可以询问你的朋友，“Do you mind if I smoke?”

Do you mind 课堂 - SpeakingMax英语口语达人

For example, try to avoid animals with fur,dust, pollen from trees and flowers or cigarette smoke.

VOA: special.2009.07.28

Cigarette smoke also contains formaldehyde C a liquid used to protect the look of dead bodies.

VOA: special.2010.03.09

Also,there are differences between males and females in the way the body processes cigarette smoke.

VOA: special.2009.06.23

But clearly there is no such thing as a safe level of cigarette smoke exposure.

VOA: special.2009.06.03

Cigarette smoke is a major problem for asthma sufferers.

VOA: special.2010.09.07

Gapstur credits the reduction in cigarette smoking, sparked by education campaigns, smoke-free laws,taxes and social policies for that.

VOA: standard.2010.03.25