单词	lifespan
释义	lifespan /ˈlʌɪfspan / noun The length of time for which a person or animal lives or a thing functions: the human lifespan... As humans lengthened lifespans with better nutrition and hunting skills, childhood also lengthened. They are slow-breeding and long-lived animals, achieving lifespans of 70 years or so. I suggested that extending human lifespans might lead to extended creativity.
随便看	cellulitis celluloid cellulolysis cellulolytic cellulose cellulose acetate cellulose gum cellulose nitrate cellulose triacetate cellulosic cellulous cell wall celly celosia celsian Celsius Celsius, Anders Celsius degree Celsius scale Celsius temperature Celsius thermometer celt Celtiberian Celtic Celtic Church

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