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A new government study suggests U.S. teen smoking rates reached an all-time low this year. 

一项新的政府研究表明，今年美国青少年吸烟率达到历史最低点。 

The study was a survey of American youth carried out by the U.S. Centers for Disease Control and Prevention (CDC). 

该研究是美国疾病控制与预防中心（CDC）对美国青少年进行的一项调查。 

The survey involved middle school students – which includes grades six through eight – and high school students in grades nine through 12. Nearly 30,000 students from 283 U.S. schools took part in the effort, which was carried out from January to May. 

这项调查涉及中学生（包括 6 至 8 年级）和 9 至 12 年级的高中生。这项调查于 1 月至 5 月进行，共有来自 283 所美国学校的近 3 万名学生参与。 

An estimated 33 percent of youth took part in the voluntary survey. 

据估计，有 33% 的年轻人参加了这项自愿调查。 

The study showed a 20 percent drop in the number of middle and high school students who said they recently used at least one tobacco product. These include cigarettes, electronic cigarettes, nicotine patches and hookahs. 

研究显示，表示最近至少使用过一种烟草产品的初中生和高中生人数下降了 20%。其中包括香烟、电子烟、尼古丁贴片和水烟袋。 

That number decreased from 2.8 million last year to 2.25 million this year. The result suggested the change was the lowest usage rate of those products since the CDC survey began in 1999. 

这一数字从去年的 280 万减少到今年的 225 万。结果表明，这是自 1999 年 CDC 调查开始以来这些产品的最低使用率。 

The Associated Press (AP) reports the drop is largely explained by another recent government survey showing e-cigarette use among U.S. youth in 2024 fell to its lowest level in 10 years. 

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