保持健康的关键问题涉及一个非常重要的领域。保健问题贯穿我们一生，所有人都要予以关注。这不仅仅适用于年轻人，在我们年龄增长的过程中它同样适用。

Maintaining health is a very important area and we need to all focus on maintaining health throughout our lives, not only as young people but also as we get older.

youdao

我们须针对我们的听众对象，即年龄在20到30岁之间的妇女。

We need to concentrate on our target audience, namely women aged between 20 and 30.

《牛津词典》

我们的大部分志愿者年龄在17到24岁之间。

Most of our volunteers are aged 17–24.

youdao

My bid concern is that you have this huge group of people on the planet 2 young people between ages of say 12 and 19 or 21 or 22 all asking the question: Who am I?

我最关注的是,我们在世界上拥有如此巨大的一个群体,即年龄介于12到19岁，或者21，22岁的青年人2,都在问一个问题：,我是谁？

普林斯顿公开课 - 人性课程节选

We live in a world in which almost 50% of the population is under 35.

我们生活在这样一个世界,几乎50%的人口的年龄不到35岁。

普林斯顿公开课 - 人性课程节选