In May, a thirteen-year-old American boy became the youngest person to climb the tallest mountain on Earth.

VOA: special.2010.06.30

In Damon's book, a wonderful book on psychopathy, he talks about a thirteen-year-old mugger who specialized in mugging blind people.

在Damon一本关于精神变态的书中，他谈到一个13岁的行凶劫匪,他专门行凶抢劫盲人。

耶鲁公开课 - 心理学导论课程节选

which you'll think, only a ten or eleven year old, but when there is thirteen of them, it's a lot.

你会想，不就是十岁、十一岁的小孩嘛，但有十三个还是很多的。

大城市是否危险？ - SpeakingMax英语口语达人

But in nineteen ninety-three, a thirteen-year-old boy accused him of child molestation.

VOA: special.2009.06.27

Thirteen year old Ava Bigtree comes from a family of alligator wrestlers.

VOA: special.2011.07.13

In nineteen ninety-three, a thirteen-year-old boy accused him of sexual abuse.

VOA: special.2009.07.05