英语词汇“pack-year”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	pack-year
释义	Word Frequency pack-year noun a measure of the amount of cigarettes a person has smoked over an extended period, equal to one packet of 20 every day for one year
随便看	phonetics phonetisation phonetisation phonetise phonetism phonetist phonetization phonetization phonetize phonetize chain smoker chain-stitch chain stitch chain store chainwheel chainwork chair chairback chairborne chairbound chairdays chair lift chairlift chairlift chairman

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