在吉姆5岁前的大部分时间里，他的爸爸离家在外地工作。

His father worked away from home for much of Jim's first five years.

《柯林斯英汉双解大词典》

她最近完成了一项对35岁前开始政治生涯的当选的官员的广泛研究。

She recently completed an extensive study of elected officials who began their political careers before the age of 35.

《柯林斯英汉双解大词典》

几天前，我23岁的女儿来找我，并带来一些重要的消息。

Several days ago, my 23-year-old daughter came to me with some important news.

youdao

If you see the pictures of Mike, especially here well before he had his surgery at the time he was about 30 skiing downhill.

如果看了迈克的照片，特别是这张他接受手术前的照片,就在他接受手术的时候，即他大约30岁左右时，他还在从事高山滑雪。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

I was probably, I think, sixteen when I went, so this was several, several years ago.

那时我才十六岁，那是几年前的事了。

大都会艺术博物馆 - SpeakingMax英语口语达人