This math problem should be worked out in half an hour.

这道数学题应该在半小时内解出来。

youdao

—Is Helen here?—No, she isn't here. She will arrive in half an hour.

——海伦在吗？ ——不，她不在。她将在半小时内到达。

youdao

My life will pick me up in half an hour.

我妻子在半小时内会来接我。

youdao

And it can go from zero to ninety-five kilometers an hour in just two and one half seconds.

VOA: special.2009.11.03

And now it is quite a regular experiment you can take any view you can hop to the scanner in half an hour.

如今，这是一个较为常见的试验,任何东西，只要你可以放进扫描仪，在在半小时之内便可以得到其视图。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

.. Let me give you a sense of, in the next half an hour and so, a sense of what you expect in this class.

我再来讲讲，接下来的半小时，我会向你们介绍下这门课的内容。

哈佛公开课 - 幸福课课程节选

It's one of those songs, rare for me, that was done in half an hour.

NPR: Noble Three: 'I Would Run'

I'll keep this brief, given the Chancellor will be on his feet in half an hour.

BBC: Waiting for the Chancellor.

We had class in half an hour, and I wanted to speed up the pace.

NEWYORKER: Midnight in Dostoevsky