life expectancy

美 
英 
  • n.预期寿命;预计存在(或持续)的期限
  • 网络平均寿命;平均余命;期望寿命
复数:life expectancies  
Life expectancy
n.
1.
预期寿命;预计存在(或持续)的期限the number of years that a person is likely to live; the length of time that sth is likely to exist or continue for

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