| 词汇 | life expectation |
| 释义 | Definition of life expectation in English:life expectationnoun
OriginMid 19th century; earliest use found in Joel Asaph Allen (1838–1921). Definition of life expectation in US English:life expectationnoun
OriginMid 19th century; earliest use found in Joel Asaph Allen (1838–1921). |
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