| 短语 | expectation of life |
| 释义 | expectation of life the number of years that someone is likely to live预期寿命;SYNlife expectancyexpectation of life人的平均寿命：Owing to the progress made in medicine and sanitation，the expectation of life has increased greatly in recent years.由于医药卫生方面的进步，人的平均寿命近年以来大为增加。 |
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