Today's average American consumes a prodigious quantity of red meat, the equivalent of one McDonald's Angus Bacon and Cheese Burger per day.

现在，每个美国人吃失落的红肉数目年夜得惊人，相当于天天吃去麦当劳的一份安格斯培根加一份芝士汉堡。

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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）。

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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）。

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