Indeed, only about 15% of Australians and 20% of Americans smoke, but in 14 low and middle-income countries covered in a survey recently published in The Lancet, an average of 41% of men smoked, with an increasing number of young women taking up the habit. The World Health Organization estimates that about 100 million people died from smoking in the twentieth century, but smoking will kill up to one billion people in the twenty-first century.
事实上，只有15%的澳大利亚人和20%的美国人吸烟，但在《柳叶刀》杂志最新公布的一项调查中，该调查所覆盖的14个中低收入国家的男性吸烟比例平均为41%，更有越来越多的年轻女性养成吸烟的习惯。世界卫生组织估计20世纪有1亿人因吸烟而丧命，而在21世纪，在最坏的情况下，吸烟将带走10亿人的生命。