The average internal rate of return over the life of all venture capital funds since 1980 until the end of last year was 5.5 per cent, against 14.4 per cent for all buyout firms.

从1980年到去年年底，所有风险资本基金的终身平均内部回报率为5.5%，而全部收购型公司的内部回报率为14.4%。

youdao

The average life expectancy is up from 35 to 73 years. Illiteracy rate is down from 80% to below 3.5%.

中国的人均预期寿命从35岁提高到73岁，文盲率从80%下降到3.5%以下。

youdao

Even in the EU, average life expectancy is 8.6 months shorter due to exposure to PM2.5, though the lung cancer rate has slightly decreased there in recent years, studies found.

研究发现，即使是在近年来肺癌发病率略微下降的欧盟国家中，其平均寿命也因为暴露在PM 2.5环境中的原因而缩短了8.6个月。

youdao

Average life expectancy is 79 years, a longevity rate topped in Asia only by Japan.

CNN: The Really Useful Guide

There is a high mortality rate -- with an average life span of only 47 -- minimal infrastructure and limited tools for economic development.

CNN: Commentary: A week with the heroes

In Roman times the average life span was just 22 (mainly because of the appalling rate of infant mortality), by 1800 it was 40 years, 1900 around the late 40s and today it hovers around the mid-to-late 70s.

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