Please prevent to smoke in front of our massagist.

请避免在按摩师面前吸烟。

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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.

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。

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The best way to prevent lung cancer is not to start smoking, or quit if you do smoke.

预防肺癌的最佳办法是不要学会吸烟，或者如果你在吸的话，就戒掉。

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If we can prevent kids from ever starting to smoke, then we can lick this problem.

NPR: Negotiator of '98 Deal Weighs New Tobacco Ruling

Aside from sadness and anger, the smoke engendered an enduring sense of duty to prevent the next big attack.

CENTERFORSECURITYPOLICY: Remarks to the Council on Foreign Relations

The agency says almost 90 percent of adult smokers picked up the habit as teenagers, and it estimates the 2009 ban helps prevent an average of more than 3, 600 young people each day from starting to smoke.

WSJ: NY Cancer Society says sweet smokes aimed at kids