Most were women with an average age of 50, and most were overweight.

他们多数是平均年龄在50岁的妇女，并且多数人体重超重。

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The women were all age 45 or older at the start, with an average age of 54.

研究开始的时候，这些女性年龄都在45岁及以上，平均年龄为54岁。

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In fact, we rate 50th out of more than 220 countries with an average age of 78.

实际上，在一个对220个国家的人均寿命的调查中，美国人78岁的人均寿命仅排名第50。

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A study published in Stroke last year involved about two thousand people with an average age of sixty-two.

VOA: special.2009.08.12

On an average day, nearly everyone fifteen years of age and older took part in a non-work activity like watching television, socializing or exercising.

VOA: special.2011.07.22

The patients who were given the drug had an average age of 60.5 years.

BBC: Breakthrough on killer infection

In total, 111 healthy women, with an average age of 58, took part in the study.

BBC: Cancer wonderdrug 'may protect heart'

Leisure World, another pioneer from the 1960s, has 20, 000 people with an average age of 77.

ECONOMIST: The growth of private communities