They worked and sweated for half an hour.

他们干了半个小时，汗流浃背。

youdao

I waited for half an hour.

我等了半个小时。

《牛津词典》

We just sat and talked for half an hour or so.

我们只是坐着谈了半小时左右。

《柯林斯英汉双解大词典》

Then the first man would speak for half an hour to close the debate.

VOA: special.2009.06.11

You thought about it maybe for a half an hour.

你想了大概半个小时。

耶鲁公开课 - 死亡课程节选

We got lost for like half an hour or so. That was fine.

我们迷路了大约半个小时。那还好。

友好的英国人 - SpeakingMax英语口语达人

You don't want to sit and watch for half an hour a pre-planned program.

CNN: Searching for answers on the Web

We can analyze it for half an hour but we know that both are wrong.

CNN: Chelsea's Hazard sent off for kicking ball boy

Presumably, he then breathed heavily into a paper bag for half an hour while listening to Enya.

CNN: Apparently This Matters: Teatime for Hitler