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1. The smokestop is a device that can be placed near cigarettes to prevent smoking.
这个烟雾停止器是一种可以放在香烟附近的设备，以防止吸烟。
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2. The city has designated several areas as smokefree zones to encourage people to stop smoking.
该市已经指定了几个无烟区，以鼓励人们戒烟。
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3. The sign outside the restaurant reads "No Smoking" to remind customers to stop smoking inside.
餐厅外的告示牌写着“禁止吸烟”，提醒顾客在室内不要吸烟。