Learner's definition of SMOKING
[noncount]
: the activity of smoking a cigarette, cigar, pipe, etc.吸烟;抽烟 -
There is no smoking allowed in this restaurant.本餐厅禁止吸烟。
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When did you start smoking?你什么时候开始抽烟的?
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Would you like to be seated in the smoking section? [=an area where smoking is allowed]您想在吸烟区就座吗?
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You need to quit/stop smoking.你需要戒烟。
— see also nonsmoking, passive smoking