Most people walk at an average rate of 5 kilometres an hour.

大多数人步行的平均速度为每小时5公里。

《牛津词典》

Per capita GNP has grown at an average rate of 7.6% from 1980-1992.

从1980年至1992年，人均国民生产总值平均增长率为7.6%。

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In the late 1960s and early '70s, the country was growing at an average rate of 11 percent a year.

在20实际60年代末70年代初，这个国家以年均11%的速度增长。

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In an area where manufacturing jobs have disappeared and the unemployment rate has risen above the national average, Mr.Obama called on Congress to pass a new job-creation bill.

VOA: standard.2010.01.22

Historically, the economy has grown at an average rate of around 3 percent per year.

FORBES: Should we Run Deficits Forever?

The bottom quintile pays .3 percent of tax collections and an average rate of 1.0 percent.

FORBES: The Path To Tax Reform: Cutting Taxes For Those Who Pay For Them

Quintile number four pays 3.8 percent of total collections and an average rate of 6.8 percent.

FORBES: The Path To Tax Reform: Cutting Taxes For Those Who Pay For Them