life-expectancy
柯林斯詞典
1. N-UNCOUNT The life expectancy of a person, animal, or plant is the length of time that they are normally likely to live. 平均期望壽命[also N in pl]
The average life expectancy was 40. 平均期望壽命曾是40歲。
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1. N-UNCOUNT The life expectancy of a person, animal, or plant is the length of time that they are normally likely to live. 平均期望壽命[also N in pl]
The average life expectancy was 40. 平均期望壽命曾是40歲。