卡罗琳5岁时在墙上乱涂乱画。

When Caroline was five she scribbled on a wall.

《柯林斯英汉双解大词典》

他在16岁时皈依了伊斯兰教。

He converted to Islam at the age of 16.

《柯林斯英汉双解大词典》

在13岁时，我被教会了法式接吻。

At the age of 13, I was taught to French kiss.

《柯林斯英汉双解大词典》

Now when Milton publishes this poem, he makes it clear that it was written at age nineteen.

那时当弥尔顿要出版诗歌的时候，他就清楚自己是在19岁时写的。

耶鲁公开课 - 弥尔顿课程节选

Some of those kids will need coronary bypass surgery in their twenties; some of them will be blind by the time they're thirty.

这些孩子有的要在二十多岁时,做冠状动脉搭桥手术,有些人在三十岁的时候会失明

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

There's sort of a period around the age of four, four and a half, where kids make the transition from failure to success.

儿童在大约四岁四岁半时,会发生从失败向成功的转变

耶鲁公开课 - 心理学导论课程节选