One and a half hours are allowed for the exam.

考试时间为一个半小时。

《牛津词典》

One unit of alcohol is equal to half a pint of beer.

一单位酒精等于半品脱啤酒。

《牛津词典》

Buy one, get the second one half off.

买一件，第二件就半价。

youdao

Helen was their first child. Until she was a year-and-one-half old, Helen Keller was just like any other child.

VOA: special.2009.11.08

I divide them in half one more time.

我要做什么？，再一次的将这些列表进行分半。

麻省理工公开课 - 计算机科学及编程导论课程节选

It's about maybe half an hour, one hour from Barbados and maybe another hour and half from Puerto Rico.

从巴巴多斯岛到那儿大概要半小时或一小时；从波多黎各到那儿则需要再花上一个半小时。

和纽约的留学生 - SpeakingMax英语口语达人

The 34 agents used in the tours are one half of one percent of our Secret Service work force.

FORBES: Move up http://i.forbesimg.com t Move down

This puts the value of your points at one half of one cent.

FORBES: Credit Card Tip Of The Week: Your Rewards Points Are Worthless

The European Central Bank has cut its key interest rate by one half of one percentage point, in 17 months.

BBC: ECB takes (a little) action