这匹一岁的赛马卖了20000美元。

The horse sold for $20,000 as a yearling.

《柯林斯英汉双解大词典》

我们才长一岁，狗可是老了七岁呢。

Dogs age seven years every time we age one.

youdao

她是一个一岁的泰迪熊仓鼠。

She's a one-year-old teddy bear hamster.

youdao

What this means, if you average it out, is that since children start learning their first words at about their first year of life, they learn about nine new words a day.

如果你将这个数字平均一下,这意味着,儿童从一岁左右,学习第一个词开始,每天学会九个新词

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

I did have a friend who was beat up by about twelve or thirteen kids who were all between ten and eleven years old,

我有个朋友曾被十二三个孩子殴打，都在十岁和十一岁之间。

大城市是否危险？ - SpeakingMax英语口语达人