一般讲，有烟与无烟效果大致是相同的，但有烟艾条的疗效要比无烟的要好一些。
Generally speaking, there is less smoke and smoke-free effect is the same, but the efficacy of moxa smoke than in smoke-free is better.
dict.youdao.com皮尔查克估计，在美国，呼吁无烟社会的全职倡导者不超过1000人。
Mr. Pertschuk estimated no more than 1,000 full-time champions in the US pressing for a smoke-free society.
www.kekenet.com控烟办公室推动社会各阶层合作，动员社会力量，在香港推广无烟文化。
Through multi- sectoral collaboration and community mobilisation, the office seeks to promote a smoke-free culture in Hong Kong.
dict.cn控烟办公室推动社会各阶层合作， 动员社会力量，在香港推广无烟文化。
Through multi-sectoral collaboration and community mobilisation, the office seeks to promote a smoke-free culture in Hong Kong.
dict.cn把自己关进一个无烟的房间，将一条湿毛巾放于门下方以阻止烟雾进入房间，丹麦克布莱德，纽约的一名消防队员说。
Close yourself in a smoke-free room and place a wet towel underneath the door to prevent any smoke from entering, says Dan McBride, a firefighter in New York City.
dict.so.163.com
