在任何国家，很大比例的罪行都是十几岁和二十几岁的青年男子所为。

A high proportion of crime in any country is perpetrated by young males in their teens and twenties.

《柯林斯英汉双解大词典》

虽然在总人口中所占比例很小，但当很大比例的青年男子被迫迁出某一地区时，可能对当地产生巨大的影响。

Although a small proportion of the total population, this perhaps had a massive local impact when a large proportion of the young men were removed from an area.

youdao

有基础研究，肿瘤学，肝病学，也有很大比例的介入心脏病学专家，各个领域均受到重视。

We have basic research, we have oncology, we have hepatology, we also have a large proportion of interventional cardiologists, and as a whole the universal population is well represented.

youdao

The percentage of the English population that would have considered themselves to be middle class is extraordinarily large.

在英国人中,自认为是中产阶级的人群占了很大比例

耶鲁公开课 - 欧洲文明课程节选

Northern Italy has a large percentage of the population who are middle class.

意大利北部有很大比例的中产阶级

耶鲁公开课 - 欧洲文明课程节选