Buy one, get the second one half off.

买一件，第二件就半价。

youdao

For sale, Hope Chest, brand new, half off, long story.

嫁妆箱一个，全新，五折出售，里面有说不完的故事。

youdao

Over the past three years, she's had to take about a year and a half off of school, often in two - to three-month chunks.

在过去的三年里，她不得不休学了一年半的时间，往往一次休两三个月。

youdao

About half of those laid off were teachers, says John Deasy,the head of the Los Angeles Unified School District.

VOA: special.2011.05.05

If your cell phone goes off during an exam, I come up there. I grab your paper, I tear it in half, and I give you a zero.

如果你的手机在考试时响起的话，我会上前，将你的卷子拿过来，撕成两半，给你零分。

麻省理工公开课 - 固态化学导论课程节选

Then the first time so he came up a major third there and then quickly backed off with just a half step below it, which completely gave it a different feel.

于是开始的时候,乐曲中出现一个大三和弦,然后快速地降低了半个音,这种变化给人完全不同的感受

耶鲁公开课 - 聆听音乐课程节选

Pay online by June 18 and we'll skip your penalty and take half off of your interest.

FORBES

And the half on, half off, look is compromised - it's like you're going to put them back in any minute.

BBC: Has the iPod made us anti-social?

But that's a decade and a half off.

FORBES: Magazine Article