My friend's father has been smoking for 16 pack-years. It's no wonder he developed lung cancer at his age.

我朋友的父亲已经有16年烟龄，每天一包未曾间断。难怪在老年的时候患上了肺癌。

youdao

Participants had either a current or former cigarette smoking history of at least 30 pack-years, and had to be without symptoms or a history of lung cancer.

这些参与者都是现行吸烟者或至少有过30包年吸烟史的人，而且尚未出现肺癌征兆也没有肺癌历史。

youdao

The risk of developing ALS also increased as the number of pack-years smoked (product of the number of packs per day and the number of years that quantity was smoked).

罹患ALS的风险性也与吸烟的数量相关（日吸烟量和年吸烟量）。

youdao

The advanced lithium-ion battery pack carries an industry-competitive warranty of 8 years or 100, 000 miles.

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Answer: A -- A plastic six-pack holder takes 450 years to disintegrate.

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Within a few years, the pack-horse trail had been widened into a proper road, stretching 368 miles from Valdez to Fairbanks, and the Richardson Highway was born.

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