洗衣服花了我半天的时间。

It took me half a day to wash my clothes.

youdao

他与总统闭门进行了几乎大半天的密谈。

He was closeted with the President for much of the day.

《牛津词典》

我们烤了大半天的蛋糕，挂了糖衣，撒了粉。

We baked, iced and sprinkled for most of the day.

youdao

The food is slow in coming out and when it's come, it's cold and not even delicious.

上菜等了半天，等到的食物却是凉的，更不用说好不好吃了。

Let's 课堂 - SpeakingMax英语口语达人