随着时间的推移，这种方法已经使吸烟人数有所下降——自20世纪70年代以来，吸烟人数几乎减少了一半。

This approach has led over time to a fall in smoking with numbers having roughly halved since the 1970s.

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但是，有一个提议将被采纳，就是免费提供给穷人尼古丁口香糖和贴剂，以帮助减少吸烟人数。

A suggestion that will be taken up, however, is to provide free nicotine gum and patches to the poorest in society to help cut down on smoking.

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该研究估计，全世界男性吸烟人数几乎是女性吸烟人数的五倍，但各个国家的男女吸烟人数的比率却相差甚大。

The study estimated that men smoke nearly five times as much as women worldwide, but the ratios of female-to-male smoking prevalence rates vary dramatically.

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By the year 2025 the number of smokers worldwide is expected to increase by 45%.

到2025年,预计世界范围吸烟人数,将增长45%

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Let's say you want to see how something like cigarette smoking is changing in the population and the rates of cigarette smoking, and you want to look at people every five years from 1970 to 2000.

比如你想知道,人群中吸烟者的人数变化,和吸烟者的比例,在1970年至2000年每五年的情况

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

As much as we know about tobacco in the United States and the fact that there are only half the number of people smoking than used to be the case, it's still expected to rise by 45% worldwide By 2030 the deaths attributed to smoking will increase from four to ten million.

就我所知美国的烟民情况,在美国吸烟的人数,只有过去的一半,在世界范围内仍有预计45%的增长,到2030年,死于吸烟的人数,将由四百万增长至一亿

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选