My daughter, Katherine, is two and half years old.

我的女儿凯瑟琳两岁半。

youdao

Two and half years ago the club launched its first suit.

两年半以前，这个俱乐部提出了首次诉讼。

youdao

Three and half years later, it still doesn't make sense.

三年半之后，人们依旧搞不明白。

youdao

The three-and-a-half percent growth was the first expansion in more than a year, and the strongest in two years.

VOA: special.2009.10.30

Then the--so the term structure was downward-sloping until about two and a half years and then it was upward sloping.

期限结构线先向下倾斜,在到期期限过了两年半的时点后,才缓慢回升

耶鲁公开课 - 金融市场课程节选

I got from a person that I worked with for two and a half years before coming here.

我在来这儿之前和他一起工作了两年半的时间。

写推荐书的人 - SpeakingMax英语口语达人

He was sentenced to 10 and half years in federal prison and was released in December 2006.

FORBES: Mark Whitacre (aka The Informant) Delivers Keynote Address at ACFE Conference

For five and half years, Miller and Fehr ate lunch together approximately four to five times a week.

FORBES: Friends and Colleagues Pay Tribute to Baseball's Marvin Miller, a Giant of American Labor

In two and half years of "recovery", the UK economy has recovered only 45% of the output lost during the recession.

BBC: Recovery in rehab