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  1. Oxford Dictionary

    life expectancy

    英式

    • n.
      the average period that a person may expect to live

    • noun: life expectancy, plural noun: life expectancies

    • 釋義

    名詞

    • 1. the average period that a person may expect to live the British male now has a life expectancy of 77.6 years the improved life expectancy of modern cars