吸烟者必须从某天开始突然戒烟，从一天一包烟到再也不抽烟。
One had to quit abruptly on a given day, going from about a pack a day to zero.
有，一天一包。
或许这是发生那些一天一包烟的烟民或者是早年抽烟抽得很厉害的老烟民的身上。
Perhaps this was one of those pack-a-day smokers or somebody a bit older who smoked heavily in their early years?
如果一天一包烟，你大概要花63美元一个星期，252美元一个月，3285美元一年，那么5年就要花16500美元。
If you smoke a pack a day, you spend about $ 63 per week, $ 252 per month, $ 3 285 per year and $ 16 500 within five years.
如果一天一包烟，你大概要花63美元一个星期，252美元一个月，3285美元一年，那么5年就要花16500美元。
If you smoke a pack a day, you spend about $ 63 per week, $ 252 per month, $ 3 285 per year and $ 16 500 within five years.
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