In a study of the effects of exercise on longevity, medical researchers tracked 500 middle-aged men over a 20-year period.

在一项有关运动对长寿的影响的研究中，医疗研究人员在为期20年的时间中跟踪调查了500名中年男性。

youdao

The guests were mostly middle-aged men talking business.

客人们大多是谈生意的中年男人。

《柯林斯英汉双解大词典》

One expert on nutrition and heart disease said the study suggests middle-aged men, at least, should watch how many eggs they eat.

一位营养及心脏病的专家说研究建议中年男性，至少，应该注意他们吃多少个鸡蛋。

youdao

"The young still see parties as white, middle class institutions led by middle aged men, " he tells the Politics Show for Yorkshire and Lincolnshire.

BBC: NEWS | Programmes | Politics Show | Yorkshire and Lincolnshire: Street Politics

Droves of middle aged men anxiously waited on endless lines for hours just so they could catch a brief glimpse of their childhood heroes.

FORBES: Buyer Beware: The Fragility Of The Sports Memorabilia Industry

He wanted to sell upmarket electronics to middle aged men.

FORBES: Steve Jobs: Is It Rapture Time Yet?