我在十几岁时增加的体重从没减下去过。

I have never lost the weight I put on in my teens.

《柯林斯英汉双解大词典》

大多数吸烟的人都是在十几岁时开始吸的。

Most people who smoke began smoking in their teens.

《柯林斯英汉双解大词典》

这位年轻人希望成为一名诗人，因为在十几岁时，他已是朦胧诗人中的其中之一。

The young man shows promise as a poet for he had been one of the members of the Misty Poets by his teens.

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the first was it didn't bother with the established baseline of what percentage of teenage girls had received an unwelcome sexual advance in the day to day actions with people.

第一个问题是,它并没有涉及到底量度的基准,到底这些十几岁的女孩子们,在白天与人正常交往的时候,所受到的性挑逗的比例为多少。

麻省理工公开课 - 媒体、教育、市场课程节选

people in their... people who are teenagers, people in their twenties,

还有人们在他们……十几岁的人，二十几岁的人，

海德公园的氛围 - SpeakingMax英语口语达人

For example, one of the statistics when I talk to people about the youth online with the study that was done years ago, where they said 1/4 teenager girls had received unwelcome sexual advances on the Internet.

例如，我通过与人们交谈获得一个数据,是关于年轻人上网的一项研究,这一研究是很多年前进行的，研究显示他们称有1/4的十几岁的女孩子,在网络上受到不受欢迎的性挑逗。

麻省理工公开课 - 媒体、教育、市场课程节选